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Finding the Fourth Proportional to 457,882.86, 631,910.73 and 253,953.21

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Solution

The fourth proportional to 457,882.86, 631,910.73 and 253,953.21 is: 350,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,882.86 : 631,910.73 = 253,953.21 : x
  2. Step 2: Convert to fraction form
    457,882.86/631,910.73 = 253,953.21/x
  3. Step 3: Cross multiply
    457,882.86x = 631,910.73 × 253,953.21
  4. Step 4: Simplify right side
    457,882.86x = 160,475,758,316.94
  5. Step 5: Solve for x
    x = 160,475,758,316.94/457,882.86
  6. Step 6: Final answer
    x = 350,473.39

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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.