Home / 319,527.29-479,356.55-129,987.18

Finding the Fourth Proportional to 319,527.29, 479,356.55 and 129,987.18

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Solution

The fourth proportional to 319,527.29, 479,356.55 and 129,987.18 is: 195,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,527.29 : 479,356.55 = 129,987.18 : x
  2. Step 2: Convert to fraction form
    319,527.29/479,356.55 = 129,987.18/x
  3. Step 3: Cross multiply
    319,527.29x = 479,356.55 × 129,987.18
  4. Step 4: Simplify right side
    319,527.29x = 62,310,206,474.00
  5. Step 5: Solve for x
    x = 62,310,206,474.00/319,527.29
  6. Step 6: Final answer
    x = 195,007.46

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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.