Home / 239,211.30-330,088.86-137,245.16

Finding the Fourth Proportional to 239,211.30, 330,088.86 and 137,245.16

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Solution

The fourth proportional to 239,211.30, 330,088.86 and 137,245.16 is: 189,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,211.30 : 330,088.86 = 137,245.16 : x
  2. Step 2: Convert to fraction form
    239,211.30/330,088.86 = 137,245.16/x
  3. Step 3: Cross multiply
    239,211.30x = 330,088.86 × 137,245.16
  4. Step 4: Simplify right side
    239,211.30x = 45,303,098,404.92
  5. Step 5: Solve for x
    x = 45,303,098,404.92/239,211.30
  6. Step 6: Final answer
    x = 189,385.28

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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.