Home / 218,726.40-328,219.20-144,060.60

Finding the Fourth Proportional to 218,726.40, 328,219.20 and 144,060.60

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Solution

The fourth proportional to 218,726.40, 328,219.20 and 144,060.60 is: 216,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,726.40 : 328,219.20 = 144,060.60 : x
  2. Step 2: Convert to fraction form
    218,726.40/328,219.20 = 144,060.60/x
  3. Step 3: Cross multiply
    218,726.40x = 328,219.20 × 144,060.60
  4. Step 4: Simplify right side
    218,726.40x = 47,283,454,883.52
  5. Step 5: Solve for x
    x = 47,283,454,883.52/218,726.40
  6. Step 6: Final answer
    x = 216,176.26

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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.