Home / 261,989.40-392,984.10-112,204.20

Finding the Fourth Proportional to 261,989.40, 392,984.10 and 112,204.20

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Solution

The fourth proportional to 261,989.40, 392,984.10 and 112,204.20 is: 168,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,989.40 : 392,984.10 = 112,204.20 : x
  2. Step 2: Convert to fraction form
    261,989.40/392,984.10 = 112,204.20/x
  3. Step 3: Cross multiply
    261,989.40x = 392,984.10 × 112,204.20
  4. Step 4: Simplify right side
    261,989.40x = 44,094,466,553.22
  5. Step 5: Solve for x
    x = 44,094,466,553.22/261,989.40
  6. Step 6: Final answer
    x = 168,306.30

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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.