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Finding the Fourth Proportional to 239,152.80, 330,045.83 and 131,722.81

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Solution

The fourth proportional to 239,152.80, 330,045.83 and 131,722.81 is: 181,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,152.80 : 330,045.83 = 131,722.81 : x
  2. Step 2: Convert to fraction form
    239,152.80/330,045.83 = 131,722.81/x
  3. Step 3: Cross multiply
    239,152.80x = 330,045.83 × 131,722.81
  4. Step 4: Simplify right side
    239,152.80x = 43,474,564,156.38
  5. Step 5: Solve for x
    x = 43,474,564,156.38/239,152.80
  6. Step 6: Final answer
    x = 181,785.72

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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.