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Finding the Fourth Proportional to 218,877.61, 328,326.25 and 67,063.57

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Solution

The fourth proportional to 218,877.61, 328,326.25 and 67,063.57 is: 100,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,877.61 : 328,326.25 = 67,063.57 : x
  2. Step 2: Convert to fraction form
    218,877.61/328,326.25 = 67,063.57/x
  3. Step 3: Cross multiply
    218,877.61x = 328,326.25 × 67,063.57
  4. Step 4: Simplify right side
    218,877.61x = 22,018,729,712.73
  5. Step 5: Solve for x
    x = 22,018,729,712.73/218,877.61
  6. Step 6: Final answer
    x = 100,598.36

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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.