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Finding the Fourth Proportional to 307,329, 424,082.88 and 171,350.04

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Solution

The fourth proportional to 307,329, 424,082.88 and 171,350.04 is: 236,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,329 : 424,082.88 = 171,350.04 : x
  2. Step 2: Convert to fraction form
    307,329/424,082.88 = 171,350.04/x
  3. Step 3: Cross multiply
    307,329x = 424,082.88 × 171,350.04
  4. Step 4: Simplify right side
    307,329x = 72,666,618,451.32
  5. Step 5: Solve for x
    x = 72,666,618,451.32/307,329
  6. Step 6: Final answer
    x = 236,445.69

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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.