Home / 218,781.32-328,259.45-94,209.80

Finding the Fourth Proportional to 218,781.32, 328,259.45 and 94,209.80

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Solution

The fourth proportional to 218,781.32, 328,259.45 and 94,209.80 is: 141,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,781.32 : 328,259.45 = 94,209.80 : x
  2. Step 2: Convert to fraction form
    218,781.32/328,259.45 = 94,209.80/x
  3. Step 3: Cross multiply
    218,781.32x = 328,259.45 × 94,209.80
  4. Step 4: Simplify right side
    218,781.32x = 30,925,255,726.84
  5. Step 5: Solve for x
    x = 30,925,255,726.84/218,781.32
  6. Step 6: Final answer
    x = 141,352.36

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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.