Home / 218,884.95-328,327.56-69,140.52

Finding the Fourth Proportional to 218,884.95, 328,327.56 and 69,140.52

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Solution

The fourth proportional to 218,884.95, 328,327.56 and 69,140.52 is: 103,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,884.95 : 328,327.56 = 69,140.52 : x
  2. Step 2: Convert to fraction form
    218,884.95/328,327.56 = 69,140.52/x
  3. Step 3: Cross multiply
    218,884.95x = 328,327.56 × 69,140.52
  4. Step 4: Simplify right side
    218,884.95x = 22,700,738,228.73
  5. Step 5: Solve for x
    x = 22,700,738,228.73/218,884.95
  6. Step 6: Final answer
    x = 103,710.82

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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.