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Finding the Fourth Proportional to 230,689.92, 318,509.46 and 149,215.62

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Solution

The fourth proportional to 230,689.92, 318,509.46 and 149,215.62 is: 206,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,689.92 : 318,509.46 = 149,215.62 : x
  2. Step 2: Convert to fraction form
    230,689.92/318,509.46 = 149,215.62/x
  3. Step 3: Cross multiply
    230,689.92x = 318,509.46 × 149,215.62
  4. Step 4: Simplify right side
    230,689.92x = 47,526,586,549.77
  5. Step 5: Solve for x
    x = 47,526,586,549.77/230,689.92
  6. Step 6: Final answer
    x = 206,019.35

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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.