Home / 311,981.40-467,972.10-264,742.20

Finding the Fourth Proportional to 311,981.40, 467,972.10 and 264,742.20

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Solution

The fourth proportional to 311,981.40, 467,972.10 and 264,742.20 is: 397,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,981.40 : 467,972.10 = 264,742.20 : x
  2. Step 2: Convert to fraction form
    311,981.40/467,972.10 = 264,742.20/x
  3. Step 3: Cross multiply
    311,981.40x = 467,972.10 × 264,742.20
  4. Step 4: Simplify right side
    311,981.40x = 123,891,963,292.62
  5. Step 5: Solve for x
    x = 123,891,963,292.62/311,981.40
  6. Step 6: Final answer
    x = 397,113.30

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1.5x scale

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.