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Finding the Fourth Proportional to 625,147.20, 937,720.80 and 204,465.60

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Solution

The fourth proportional to 625,147.20, 937,720.80 and 204,465.60 is: 306,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,147.20 : 937,720.80 = 204,465.60 : x
  2. Step 2: Convert to fraction form
    625,147.20/937,720.80 = 204,465.60/x
  3. Step 3: Cross multiply
    625,147.20x = 937,720.80 × 204,465.60
  4. Step 4: Simplify right side
    625,147.20x = 191,731,646,004.48
  5. Step 5: Solve for x
    x = 191,731,646,004.48/625,147.20
  6. Step 6: Final answer
    x = 306,698.40

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Similar ratio
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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.