Home / 266,139.20-398,552.70-176,909.60

Finding the Fourth Proportional to 266,139.20, 398,552.70 and 176,909.60

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Solution

The fourth proportional to 266,139.20, 398,552.70 and 176,909.60 is: 264,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,139.20 : 398,552.70 = 176,909.60 : x
  2. Step 2: Convert to fraction form
    266,139.20/398,552.70 = 176,909.60/x
  3. Step 3: Cross multiply
    266,139.20x = 398,552.70 × 176,909.60
  4. Step 4: Simplify right side
    266,139.20x = 70,507,798,735.92
  5. Step 5: Solve for x
    x = 70,507,798,735.92/266,139.20
  6. Step 6: Final answer
    x = 264,928.27

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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.