Home / 453,109.20-679,642.20-153,560.40

Finding the Fourth Proportional to 453,109.20, 679,642.20 and 153,560.40

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Solution

The fourth proportional to 453,109.20, 679,642.20 and 153,560.40 is: 230,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,109.20 : 679,642.20 = 153,560.40 : x
  2. Step 2: Convert to fraction form
    453,109.20/679,642.20 = 153,560.40/x
  3. Step 3: Cross multiply
    453,109.20x = 679,642.20 × 153,560.40
  4. Step 4: Simplify right side
    453,109.20x = 104,366,128,088.88
  5. Step 5: Solve for x
    x = 104,366,128,088.88/453,109.20
  6. Step 6: Final answer
    x = 230,333.28

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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.