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Finding the Fourth Proportional to 356,208.62, 534,340.68 and 103,493.20

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Solution

The fourth proportional to 356,208.62, 534,340.68 and 103,493.20 is: 155,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,208.62 : 534,340.68 = 103,493.20 : x
  2. Step 2: Convert to fraction form
    356,208.62/534,340.68 = 103,493.20/x
  3. Step 3: Cross multiply
    356,208.62x = 534,340.68 × 103,493.20
  4. Step 4: Simplify right side
    356,208.62x = 55,300,626,863.38
  5. Step 5: Solve for x
    x = 55,300,626,863.38/356,208.62
  6. Step 6: Final answer
    x = 155,247.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.