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Finding the Fourth Proportional to 218,805.41, 328,208.00 and 69,060.71

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Solution

The fourth proportional to 218,805.41, 328,208.00 and 69,060.71 is: 103,591.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,805.41 : 328,208.00 = 69,060.71 : x
  2. Step 2: Convert to fraction form
    218,805.41/328,208.00 = 69,060.71/x
  3. Step 3: Cross multiply
    218,805.41x = 328,208.00 × 69,060.71
  4. Step 4: Simplify right side
    218,805.41x = 22,666,275,521.34
  5. Step 5: Solve for x
    x = 22,666,275,521.34/218,805.41
  6. Step 6: Final answer
    x = 103,591.02

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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.