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Finding the Fourth Proportional to 219,752.76, 329,645.55 and 93,378.78

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Solution

The fourth proportional to 219,752.76, 329,645.55 and 93,378.78 is: 140,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,752.76 : 329,645.55 = 93,378.78 : x
  2. Step 2: Convert to fraction form
    219,752.76/329,645.55 = 93,378.78/x
  3. Step 3: Cross multiply
    219,752.76x = 329,645.55 × 93,378.78
  4. Step 4: Simplify right side
    219,752.76x = 30,781,899,291.43
  5. Step 5: Solve for x
    x = 30,781,899,291.43/219,752.76
  6. Step 6: Final answer
    x = 140,075.14

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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.