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Finding the Fourth Proportional to 651,421.60, 977,132.40 and 230,642.80

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Solution

The fourth proportional to 651,421.60, 977,132.40 and 230,642.80 is: 345,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,421.60 : 977,132.40 = 230,642.80 : x
  2. Step 2: Convert to fraction form
    651,421.60/977,132.40 = 230,642.80/x
  3. Step 3: Cross multiply
    651,421.60x = 977,132.40 × 230,642.80
  4. Step 4: Simplify right side
    651,421.60x = 225,368,552,706.72
  5. Step 5: Solve for x
    x = 225,368,552,706.72/651,421.60
  6. Step 6: Final answer
    x = 345,964.20

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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.