Home / 311,761.04-430,214.10-175,791.20

Finding the Fourth Proportional to 311,761.04, 430,214.10 and 175,791.20

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Solution

The fourth proportional to 311,761.04, 430,214.10 and 175,791.20 is: 242,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,761.04 : 430,214.10 = 175,791.20 : x
  2. Step 2: Convert to fraction form
    311,761.04/430,214.10 = 175,791.20/x
  3. Step 3: Cross multiply
    311,761.04x = 430,214.10 × 175,791.20
  4. Step 4: Simplify right side
    311,761.04x = 75,627,852,895.92
  5. Step 5: Solve for x
    x = 75,627,852,895.92/311,761.04
  6. Step 6: Final answer
    x = 242,582.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.