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Finding the Fourth Proportional to 457,002.52, 630,655.79 and 253,049.06

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Solution

The fourth proportional to 457,002.52, 630,655.79 and 253,049.06 is: 349,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,002.52 : 630,655.79 = 253,049.06 : x
  2. Step 2: Convert to fraction form
    457,002.52/630,655.79 = 253,049.06/x
  3. Step 3: Cross multiply
    457,002.52x = 630,655.79 × 253,049.06
  4. Step 4: Simplify right side
    457,002.52x = 159,586,855,154.45
  5. Step 5: Solve for x
    x = 159,586,855,154.45/457,002.52
  6. Step 6: Final answer
    x = 349,203.45

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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.