Home / 266,323.20-398,966.40-160,828.80

Finding the Fourth Proportional to 266,323.20, 398,966.40 and 160,828.80

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Solution

The fourth proportional to 266,323.20, 398,966.40 and 160,828.80 is: 240,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,323.20 : 398,966.40 = 160,828.80 : x
  2. Step 2: Convert to fraction form
    266,323.20/398,966.40 = 160,828.80/x
  3. Step 3: Cross multiply
    266,323.20x = 398,966.40 × 160,828.80
  4. Step 4: Simplify right side
    266,323.20x = 64,165,287,352.32
  5. Step 5: Solve for x
    x = 64,165,287,352.32/266,323.20
  6. Step 6: Final answer
    x = 240,930.15

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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.