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Finding the Fourth Proportional to 468,090.28, 645,964.03 and 253,229.68

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Solution

The fourth proportional to 468,090.28, 645,964.03 and 253,229.68 is: 349,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,090.28 : 645,964.03 = 253,229.68 : x
  2. Step 2: Convert to fraction form
    468,090.28/645,964.03 = 253,229.68/x
  3. Step 3: Cross multiply
    468,090.28x = 645,964.03 × 253,229.68
  4. Step 4: Simplify right side
    468,090.28x = 163,577,264,608.41
  5. Step 5: Solve for x
    x = 163,577,264,608.41/468,090.28
  6. Step 6: Final answer
    x = 349,456.66

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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.