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Finding the Fourth Proportional to 234,077.80, 351,116.70 and 219,315.55

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Solution

The fourth proportional to 234,077.80, 351,116.70 and 219,315.55 is: 328,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,077.80 : 351,116.70 = 219,315.55 : x
  2. Step 2: Convert to fraction form
    234,077.80/351,116.70 = 219,315.55/x
  3. Step 3: Cross multiply
    234,077.80x = 351,116.70 × 219,315.55
  4. Step 4: Simplify right side
    234,077.80x = 77,005,352,174.69
  5. Step 5: Solve for x
    x = 77,005,352,174.69/234,077.80
  6. Step 6: Final answer
    x = 328,973.33

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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.