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Finding the Fourth Proportional to 445,995.96, 615,426.30 and 252,423.24

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Solution

The fourth proportional to 445,995.96, 615,426.30 and 252,423.24 is: 348,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,995.96 : 615,426.30 = 252,423.24 : x
  2. Step 2: Convert to fraction form
    445,995.96/615,426.30 = 252,423.24/x
  3. Step 3: Cross multiply
    445,995.96x = 615,426.30 × 252,423.24
  4. Step 4: Simplify right side
    445,995.96x = 155,347,900,627.21
  5. Step 5: Solve for x
    x = 155,347,900,627.21/445,995.96
  6. Step 6: Final answer
    x = 348,316.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.