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Finding the Fourth Proportional to 457,660.51, 631,569.76 and 256,456.51

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Solution

The fourth proportional to 457,660.51, 631,569.76 and 256,456.51 is: 353,909.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,660.51 : 631,569.76 = 256,456.51 : x
  2. Step 2: Convert to fraction form
    457,660.51/631,569.76 = 256,456.51/x
  3. Step 3: Cross multiply
    457,660.51x = 631,569.76 × 256,456.51
  4. Step 4: Simplify right side
    457,660.51x = 161,970,175,188.86
  5. Step 5: Solve for x
    x = 161,970,175,188.86/457,660.51
  6. Step 6: Final answer
    x = 353,909.00

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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.