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Finding the Fourth Proportional to 457,838.46, 631,849.43 and 253,908.90

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Solution

The fourth proportional to 457,838.46, 631,849.43 and 253,908.90 is: 350,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,838.46 : 631,849.43 = 253,908.90 : x
  2. Step 2: Convert to fraction form
    457,838.46/631,849.43 = 253,908.90/x
  3. Step 3: Cross multiply
    457,838.46x = 631,849.43 × 253,908.90
  4. Step 4: Simplify right side
    457,838.46x = 160,432,194,371.70
  5. Step 5: Solve for x
    x = 160,432,194,371.70/457,838.46
  6. Step 6: Final answer
    x = 350,412.23

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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.