Home / 495,456.75-743,222.18-140,499.36

Finding the Fourth Proportional to 495,456.75, 743,222.18 and 140,499.36

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Solution

The fourth proportional to 495,456.75, 743,222.18 and 140,499.36 is: 210,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,456.75 : 743,222.18 = 140,499.36 : x
  2. Step 2: Convert to fraction form
    495,456.75/743,222.18 = 140,499.36/x
  3. Step 3: Cross multiply
    495,456.75x = 743,222.18 × 140,499.36
  4. Step 4: Simplify right side
    495,456.75x = 104,422,240,979.05
  5. Step 5: Solve for x
    x = 104,422,240,979.05/495,456.75
  6. Step 6: Final answer
    x = 210,759.55

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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.