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Finding the Fourth Proportional to 230,628.43, 318,266.71 and 130,025.71

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Solution

The fourth proportional to 230,628.43, 318,266.71 and 130,025.71 is: 179,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,628.43 : 318,266.71 = 130,025.71 : x
  2. Step 2: Convert to fraction form
    230,628.43/318,266.71 = 130,025.71/x
  3. Step 3: Cross multiply
    230,628.43x = 318,266.71 × 130,025.71
  4. Step 4: Simplify right side
    230,628.43x = 41,382,854,937.11
  5. Step 5: Solve for x
    x = 41,382,854,937.11/230,628.43
  6. Step 6: Final answer
    x = 179,435.18

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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.