Home / 276,852.70-415,279.05-89,864.20

Finding the Fourth Proportional to 276,852.70, 415,279.05 and 89,864.20

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Solution

The fourth proportional to 276,852.70, 415,279.05 and 89,864.20 is: 134,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,852.70 : 415,279.05 = 89,864.20 : x
  2. Step 2: Convert to fraction form
    276,852.70/415,279.05 = 89,864.20/x
  3. Step 3: Cross multiply
    276,852.70x = 415,279.05 × 89,864.20
  4. Step 4: Simplify right side
    276,852.70x = 37,318,719,605.01
  5. Step 5: Solve for x
    x = 37,318,719,605.01/276,852.70
  6. Step 6: Final answer
    x = 134,796.30

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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.