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Finding the Fourth Proportional to 245,508.62, 368,263.26 and 77,041.85

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Solution

The fourth proportional to 245,508.62, 368,263.26 and 77,041.85 is: 115,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,508.62 : 368,263.26 = 77,041.85 : x
  2. Step 2: Convert to fraction form
    245,508.62/368,263.26 = 77,041.85/x
  3. Step 3: Cross multiply
    245,508.62x = 368,263.26 × 77,041.85
  4. Step 4: Simplify right side
    245,508.62x = 28,371,680,996.11
  5. Step 5: Solve for x
    x = 28,371,680,996.11/245,508.62
  6. Step 6: Final answer
    x = 115,562.87

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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.