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Finding the Fourth Proportional to 272,136.86, 375,418.17 and 234,345.50

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Solution

The fourth proportional to 272,136.86, 375,418.17 and 234,345.50 is: 323,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,136.86 : 375,418.17 = 234,345.50 : x
  2. Step 2: Convert to fraction form
    272,136.86/375,418.17 = 234,345.50/x
  3. Step 3: Cross multiply
    272,136.86x = 375,418.17 × 234,345.50
  4. Step 4: Simplify right side
    272,136.86x = 87,977,558,757.74
  5. Step 5: Solve for x
    x = 87,977,558,757.74/272,136.86
  6. Step 6: Final answer
    x = 323,284.24

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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.