Home / 218,916.20-328,374.30-140,184.20

Finding the Fourth Proportional to 218,916.20, 328,374.30 and 140,184.20

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Solution

The fourth proportional to 218,916.20, 328,374.30 and 140,184.20 is: 210,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,916.20 : 328,374.30 = 140,184.20 : x
  2. Step 2: Convert to fraction form
    218,916.20/328,374.30 = 140,184.20/x
  3. Step 3: Cross multiply
    218,916.20x = 328,374.30 × 140,184.20
  4. Step 4: Simplify right side
    218,916.20x = 46,032,888,546.06
  5. Step 5: Solve for x
    x = 46,032,888,546.06/218,916.20
  6. Step 6: Final answer
    x = 210,276.30

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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.