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Finding the Fourth Proportional to 457,013.33, 630,670.68 and 253,059.87

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Solution

The fourth proportional to 457,013.33, 630,670.68 and 253,059.87 is: 349,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,013.33 : 630,670.68 = 253,059.87 : x
  2. Step 2: Convert to fraction form
    457,013.33/630,670.68 = 253,059.87/x
  3. Step 3: Cross multiply
    457,013.33x = 630,670.68 × 253,059.87
  4. Step 4: Simplify right side
    457,013.33x = 159,597,440,293.61
  5. Step 5: Solve for x
    x = 159,597,440,293.61/457,013.33
  6. Step 6: Final answer
    x = 349,218.35

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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.