Home / 268,559.10-402,838.65-126,315.95

Finding the Fourth Proportional to 268,559.10, 402,838.65 and 126,315.95

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Solution

The fourth proportional to 268,559.10, 402,838.65 and 126,315.95 is: 189,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,559.10 : 402,838.65 = 126,315.95 : x
  2. Step 2: Convert to fraction form
    268,559.10/402,838.65 = 126,315.95/x
  3. Step 3: Cross multiply
    268,559.10x = 402,838.65 × 126,315.95
  4. Step 4: Simplify right side
    268,559.10x = 50,884,944,757.27
  5. Step 5: Solve for x
    x = 50,884,944,757.27/268,559.10
  6. Step 6: Final answer
    x = 189,473.92

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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.