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Finding the Fourth Proportional to 342,003.60, 513,005.40 and 230,029.20

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Solution

The fourth proportional to 342,003.60, 513,005.40 and 230,029.20 is: 345,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,003.60 : 513,005.40 = 230,029.20 : x
  2. Step 2: Convert to fraction form
    342,003.60/513,005.40 = 230,029.20/x
  3. Step 3: Cross multiply
    342,003.60x = 513,005.40 × 230,029.20
  4. Step 4: Simplify right side
    342,003.60x = 118,006,221,757.68
  5. Step 5: Solve for x
    x = 118,006,221,757.68/342,003.60
  6. Step 6: Final answer
    x = 345,043.80

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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.