Home / 272,280.30-407,934.45-131,729.10

Finding the Fourth Proportional to 272,280.30, 407,934.45 and 131,729.10

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Solution

The fourth proportional to 272,280.30, 407,934.45 and 131,729.10 is: 197,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,280.30 : 407,934.45 = 131,729.10 : x
  2. Step 2: Convert to fraction form
    272,280.30/407,934.45 = 131,729.10/x
  3. Step 3: Cross multiply
    272,280.30x = 407,934.45 × 131,729.10
  4. Step 4: Simplify right side
    272,280.30x = 53,736,837,957.50
  5. Step 5: Solve for x
    x = 53,736,837,957.50/272,280.30
  6. Step 6: Final answer
    x = 197,358.52

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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.