Home / 230,211.13-317,618.25-129,589.69

Finding the Fourth Proportional to 230,211.13, 317,618.25 and 129,589.69

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Solution

The fourth proportional to 230,211.13, 317,618.25 and 129,589.69 is: 178,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,211.13 : 317,618.25 = 129,589.69 : x
  2. Step 2: Convert to fraction form
    230,211.13/317,618.25 = 129,589.69/x
  3. Step 3: Cross multiply
    230,211.13x = 317,618.25 × 129,589.69
  4. Step 4: Simplify right side
    230,211.13x = 41,160,050,555.84
  5. Step 5: Solve for x
    x = 41,160,050,555.84/230,211.13
  6. Step 6: Final answer
    x = 178,792.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.