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Finding the Fourth Proportional to 234,280.77, 351,421.21 and 84,521.01

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Solution

The fourth proportional to 234,280.77, 351,421.21 and 84,521.01 is: 126,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,280.77 : 351,421.21 = 84,521.01 : x
  2. Step 2: Convert to fraction form
    234,280.77/351,421.21 = 84,521.01/x
  3. Step 3: Cross multiply
    234,280.77x = 351,421.21 × 84,521.01
  4. Step 4: Simplify right side
    234,280.77x = 29,702,476,060.57
  5. Step 5: Solve for x
    x = 29,702,476,060.57/234,280.77
  6. Step 6: Final answer
    x = 126,781.54

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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.