Home / 230,532.18-318,136.26-128,564.22

Finding the Fourth Proportional to 230,532.18, 318,136.26 and 128,564.22

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Solution

The fourth proportional to 230,532.18, 318,136.26 and 128,564.22 is: 177,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,532.18 : 318,136.26 = 128,564.22 : x
  2. Step 2: Convert to fraction form
    230,532.18/318,136.26 = 128,564.22/x
  3. Step 3: Cross multiply
    230,532.18x = 318,136.26 × 128,564.22
  4. Step 4: Simplify right side
    230,532.18x = 40,900,940,120.62
  5. Step 5: Solve for x
    x = 40,900,940,120.62/230,532.18
  6. Step 6: Final answer
    x = 177,419.66

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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.