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Finding the Fourth Proportional to 318,898.62, 440,060.31 and 175,650.66

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Solution

The fourth proportional to 318,898.62, 440,060.31 and 175,650.66 is: 242,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,898.62 : 440,060.31 = 175,650.66 : x
  2. Step 2: Convert to fraction form
    318,898.62/440,060.31 = 175,650.66/x
  3. Step 3: Cross multiply
    318,898.62x = 440,060.31 × 175,650.66
  4. Step 4: Simplify right side
    318,898.62x = 77,296,883,891.30
  5. Step 5: Solve for x
    x = 77,296,883,891.30/318,898.62
  6. Step 6: Final answer
    x = 242,387.01

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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.