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Finding the Fourth Proportional to 318,849.45, 440,032.17 and 175,609.45

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Solution

The fourth proportional to 318,849.45, 440,032.17 and 175,609.45 is: 242,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,849.45 : 440,032.17 = 175,609.45 : x
  2. Step 2: Convert to fraction form
    318,849.45/440,032.17 = 175,609.45/x
  3. Step 3: Cross multiply
    318,849.45x = 440,032.17 × 175,609.45
  4. Step 4: Simplify right side
    318,849.45x = 77,273,807,356.01
  5. Step 5: Solve for x
    x = 77,273,807,356.01/318,849.45
  6. Step 6: Final answer
    x = 242,352.02

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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.