Home / 452,867.20-679,279.20-153,318.40

Finding the Fourth Proportional to 452,867.20, 679,279.20 and 153,318.40

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Solution

The fourth proportional to 452,867.20, 679,279.20 and 153,318.40 is: 229,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,867.20 : 679,279.20 = 153,318.40 : x
  2. Step 2: Convert to fraction form
    452,867.20/679,279.20 = 153,318.40/x
  3. Step 3: Cross multiply
    452,867.20x = 679,279.20 × 153,318.40
  4. Step 4: Simplify right side
    452,867.20x = 104,146,000,097.28
  5. Step 5: Solve for x
    x = 104,146,000,097.28/452,867.20
  6. Step 6: Final answer
    x = 229,970.29

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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.