Home / 239,000.70-329,830.38-131,580.72

Finding the Fourth Proportional to 239,000.70, 329,830.38 and 131,580.72

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Solution

The fourth proportional to 239,000.70, 329,830.38 and 131,580.72 is: 181,586.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,000.70 : 329,830.38 = 131,580.72 : x
  2. Step 2: Convert to fraction form
    239,000.70/329,830.38 = 131,580.72/x
  3. Step 3: Cross multiply
    239,000.70x = 329,830.38 × 131,580.72
  4. Step 4: Simplify right side
    239,000.70x = 43,399,318,878.27
  5. Step 5: Solve for x
    x = 43,399,318,878.27/239,000.70
  6. Step 6: Final answer
    x = 181,586.58

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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.