Home / 453,139.20-679,687.20-153,590.40

Finding the Fourth Proportional to 453,139.20, 679,687.20 and 153,590.40

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Solution

The fourth proportional to 453,139.20, 679,687.20 and 153,590.40 is: 230,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,139.20 : 679,687.20 = 153,590.40 : x
  2. Step 2: Convert to fraction form
    453,139.20/679,687.20 = 153,590.40/x
  3. Step 3: Cross multiply
    453,139.20x = 679,687.20 × 153,590.40
  4. Step 4: Simplify right side
    453,139.20x = 104,393,428,922.88
  5. Step 5: Solve for x
    x = 104,393,428,922.88/453,139.20
  6. Step 6: Final answer
    x = 230,378.28

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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.