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Finding the Fourth Proportional to 457,002.28, 630,655.45 and 253,048.81

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Solution

The fourth proportional to 457,002.28, 630,655.45 and 253,048.81 is: 349,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,002.28 : 630,655.45 = 253,048.81 : x
  2. Step 2: Convert to fraction form
    457,002.28/630,655.45 = 253,048.81/x
  3. Step 3: Cross multiply
    457,002.28x = 630,655.45 × 253,048.81
  4. Step 4: Simplify right side
    457,002.28x = 159,586,611,142.52
  5. Step 5: Solve for x
    x = 159,586,611,142.52/457,002.28
  6. Step 6: Final answer
    x = 349,203.10

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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.