Home / 230,572.64-318,192.03-128,604.57

Finding the Fourth Proportional to 230,572.64, 318,192.03 and 128,604.57

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Solution

The fourth proportional to 230,572.64, 318,192.03 and 128,604.57 is: 177,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,572.64 : 318,192.03 = 128,604.57 : x
  2. Step 2: Convert to fraction form
    230,572.64/318,192.03 = 128,604.57/x
  3. Step 3: Cross multiply
    230,572.64x = 318,192.03 × 128,604.57
  4. Step 4: Simplify right side
    230,572.64x = 40,920,949,195.58
  5. Step 5: Solve for x
    x = 40,920,949,195.58/230,572.64
  6. Step 6: Final answer
    x = 177,475.31

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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.