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Finding the Fourth Proportional to 651,416.40, 977,221.80 and 230,659.20

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Solution

The fourth proportional to 651,416.40, 977,221.80 and 230,659.20 is: 346,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,416.40 : 977,221.80 = 230,659.20 : x
  2. Step 2: Convert to fraction form
    651,416.40/977,221.80 = 230,659.20/x
  3. Step 3: Cross multiply
    651,416.40x = 977,221.80 × 230,659.20
  4. Step 4: Simplify right side
    651,416.40x = 225,405,198,610.56
  5. Step 5: Solve for x
    x = 225,405,198,610.56/651,416.40
  6. Step 6: Final answer
    x = 346,023.22

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.