Home / 261,666.20-392,499.30-187,016.60

Finding the Fourth Proportional to 261,666.20, 392,499.30 and 187,016.60

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Solution

The fourth proportional to 261,666.20, 392,499.30 and 187,016.60 is: 280,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,666.20 : 392,499.30 = 187,016.60 : x
  2. Step 2: Convert to fraction form
    261,666.20/392,499.30 = 187,016.60/x
  3. Step 3: Cross multiply
    261,666.20x = 392,499.30 × 187,016.60
  4. Step 4: Simplify right side
    261,666.20x = 73,403,884,588.38
  5. Step 5: Solve for x
    x = 73,403,884,588.38/261,666.20
  6. Step 6: Final answer
    x = 280,524.90

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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.