Home / 266,123.20-398,601.60-141,318.40

Finding the Fourth Proportional to 266,123.20, 398,601.60 and 141,318.40

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Solution

The fourth proportional to 266,123.20, 398,601.60 and 141,318.40 is: 211,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,123.20 : 398,601.60 = 141,318.40 : x
  2. Step 2: Convert to fraction form
    266,123.20/398,601.60 = 141,318.40/x
  3. Step 3: Cross multiply
    266,123.20x = 398,601.60 × 141,318.40
  4. Step 4: Simplify right side
    266,123.20x = 56,329,740,349.44
  5. Step 5: Solve for x
    x = 56,329,740,349.44/266,123.20
  6. Step 6: Final answer
    x = 211,667.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.