Home / 239,427.20-359,140.80-146,115.20

Finding the Fourth Proportional to 239,427.20, 359,140.80 and 146,115.20

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Solution

The fourth proportional to 239,427.20, 359,140.80 and 146,115.20 is: 219,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,427.20 : 359,140.80 = 146,115.20 : x
  2. Step 2: Convert to fraction form
    239,427.20/359,140.80 = 146,115.20/x
  3. Step 3: Cross multiply
    239,427.20x = 359,140.80 × 146,115.20
  4. Step 4: Simplify right side
    239,427.20x = 52,475,929,820.16
  5. Step 5: Solve for x
    x = 52,475,929,820.16/239,427.20
  6. Step 6: Final answer
    x = 219,172.80

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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.