Home / 218,977.20-328,575.15-124,280.10

Finding the Fourth Proportional to 218,977.20, 328,575.15 and 124,280.10

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Solution

The fourth proportional to 218,977.20, 328,575.15 and 124,280.10 is: 186,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,977.20 : 328,575.15 = 124,280.10 : x
  2. Step 2: Convert to fraction form
    218,977.20/328,575.15 = 124,280.10/x
  3. Step 3: Cross multiply
    218,977.20x = 328,575.15 × 124,280.10
  4. Step 4: Simplify right side
    218,977.20x = 40,835,352,499.52
  5. Step 5: Solve for x
    x = 40,835,352,499.52/218,977.20
  6. Step 6: Final answer
    x = 186,482.21

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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.