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Finding the Fourth Proportional to 457,474.12, 631,314.36 and 256,270.12

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Solution

The fourth proportional to 457,474.12, 631,314.36 and 256,270.12 is: 353,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,474.12 : 631,314.36 = 256,270.12 : x
  2. Step 2: Convert to fraction form
    457,474.12/631,314.36 = 256,270.12/x
  3. Step 3: Cross multiply
    457,474.12x = 631,314.36 × 256,270.12
  4. Step 4: Simplify right side
    457,474.12x = 161,787,006,794.92
  5. Step 5: Solve for x
    x = 161,787,006,794.92/457,474.12
  6. Step 6: Final answer
    x = 353,652.81

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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.