Home / 266,235.20-398,834.40-160,740.80

Finding the Fourth Proportional to 266,235.20, 398,834.40 and 160,740.80

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Solution

The fourth proportional to 266,235.20, 398,834.40 and 160,740.80 is: 240,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,235.20 : 398,834.40 = 160,740.80 : x
  2. Step 2: Convert to fraction form
    266,235.20/398,834.40 = 160,740.80/x
  3. Step 3: Cross multiply
    266,235.20x = 398,834.40 × 160,740.80
  4. Step 4: Simplify right side
    266,235.20x = 64,108,960,523.52
  5. Step 5: Solve for x
    x = 64,108,960,523.52/266,235.20
  6. Step 6: Final answer
    x = 240,798.21

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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.