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Finding the Fourth Proportional to 457,426.53, 631,248.66 and 256,222.53

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Solution

The fourth proportional to 457,426.53, 631,248.66 and 256,222.53 is: 353,587.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,426.53 : 631,248.66 = 256,222.53 : x
  2. Step 2: Convert to fraction form
    457,426.53/631,248.66 = 256,222.53/x
  3. Step 3: Cross multiply
    457,426.53x = 631,248.66 × 256,222.53
  4. Step 4: Simplify right side
    457,426.53x = 161,740,128,724.31
  5. Step 5: Solve for x
    x = 161,740,128,724.31/457,426.53
  6. Step 6: Final answer
    x = 353,587.12

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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.