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Finding the Fourth Proportional to 239,957.76, 359,980.36 and 120,077.36

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Solution

The fourth proportional to 239,957.76, 359,980.36 and 120,077.36 is: 180,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,957.76 : 359,980.36 = 120,077.36 : x
  2. Step 2: Convert to fraction form
    239,957.76/359,980.36 = 120,077.36/x
  3. Step 3: Cross multiply
    239,957.76x = 359,980.36 × 120,077.36
  4. Step 4: Simplify right side
    239,957.76x = 43,225,491,280.65
  5. Step 5: Solve for x
    x = 43,225,491,280.65/239,957.76
  6. Step 6: Final answer
    x = 180,137.92

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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.