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Finding the Fourth Proportional to 457,005.53, 630,659.93 and 253,052.07

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Solution

The fourth proportional to 457,005.53, 630,659.93 and 253,052.07 is: 349,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,005.53 : 630,659.93 = 253,052.07 : x
  2. Step 2: Convert to fraction form
    457,005.53/630,659.93 = 253,052.07/x
  3. Step 3: Cross multiply
    457,005.53x = 630,659.93 × 253,052.07
  4. Step 4: Simplify right side
    457,005.53x = 159,589,799,487.30
  5. Step 5: Solve for x
    x = 159,589,799,487.30/457,005.53
  6. Step 6: Final answer
    x = 349,207.59

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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.