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Finding the Fourth Proportional to 219,552.76, 329,854.50 and 140,820.76

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Solution

The fourth proportional to 219,552.76, 329,854.50 and 140,820.76 is: 211,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,552.76 : 329,854.50 = 140,820.76 : x
  2. Step 2: Convert to fraction form
    219,552.76/329,854.50 = 140,820.76/x
  3. Step 3: Cross multiply
    219,552.76x = 329,854.50 × 140,820.76
  4. Step 4: Simplify right side
    219,552.76x = 46,450,361,379.42
  5. Step 5: Solve for x
    x = 46,450,361,379.42/219,552.76
  6. Step 6: Final answer
    x = 211,568.10

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1.5x scale

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.