Home / 239,620.40-359,257.80-156,561.20

Finding the Fourth Proportional to 239,620.40, 359,257.80 and 156,561.20

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Solution

The fourth proportional to 239,620.40, 359,257.80 and 156,561.20 is: 234,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,620.40 : 359,257.80 = 156,561.20 : x
  2. Step 2: Convert to fraction form
    239,620.40/359,257.80 = 156,561.20/x
  3. Step 3: Cross multiply
    239,620.40x = 359,257.80 × 156,561.20
  4. Step 4: Simplify right side
    239,620.40x = 56,245,832,277.36
  5. Step 5: Solve for x
    x = 56,245,832,277.36/239,620.40
  6. Step 6: Final answer
    x = 234,728.90

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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.