Home / 358,631.20-537,791.28-121,910.40

Finding the Fourth Proportional to 358,631.20, 537,791.28 and 121,910.40

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Solution

The fourth proportional to 358,631.20, 537,791.28 and 121,910.40 is: 182,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,631.20 : 537,791.28 = 121,910.40 : x
  2. Step 2: Convert to fraction form
    358,631.20/537,791.28 = 121,910.40/x
  3. Step 3: Cross multiply
    358,631.20x = 537,791.28 × 121,910.40
  4. Step 4: Simplify right side
    358,631.20x = 65,562,350,061.31
  5. Step 5: Solve for x
    x = 65,562,350,061.31/358,631.20
  6. Step 6: Final answer
    x = 182,812.73

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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.