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Finding the Fourth Proportional to 457,854.76, 631,837.58 and 256,650.76

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Solution

The fourth proportional to 457,854.76, 631,837.58 and 256,650.76 is: 354,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,854.76 : 631,837.58 = 256,650.76 : x
  2. Step 2: Convert to fraction form
    457,854.76/631,837.58 = 256,650.76/x
  3. Step 3: Cross multiply
    457,854.76x = 631,837.58 × 256,650.76
  4. Step 4: Simplify right side
    457,854.76x = 162,161,595,103.56
  5. Step 5: Solve for x
    x = 162,161,595,103.56/457,854.76
  6. Step 6: Final answer
    x = 354,176.93

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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.