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Finding the Fourth Proportional to 307,495.76, 424,354.68 and 178,424.48

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Solution

The fourth proportional to 307,495.76, 424,354.68 and 178,424.48 is: 246,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,495.76 : 424,354.68 = 178,424.48 : x
  2. Step 2: Convert to fraction form
    307,495.76/424,354.68 = 178,424.48/x
  3. Step 3: Cross multiply
    307,495.76x = 424,354.68 × 178,424.48
  4. Step 4: Simplify right side
    307,495.76x = 75,715,264,175.45
  5. Step 5: Solve for x
    x = 75,715,264,175.45/307,495.76
  6. Step 6: Final answer
    x = 246,231.90

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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.