Home / 276,824.80-415,215.60-108,312.40

Finding the Fourth Proportional to 276,824.80, 415,215.60 and 108,312.40

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Solution

The fourth proportional to 276,824.80, 415,215.60 and 108,312.40 is: 162,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,824.80 : 415,215.60 = 108,312.40 : x
  2. Step 2: Convert to fraction form
    276,824.80/415,215.60 = 108,312.40/x
  3. Step 3: Cross multiply
    276,824.80x = 415,215.60 × 108,312.40
  4. Step 4: Simplify right side
    276,824.80x = 44,972,998,153.44
  5. Step 5: Solve for x
    x = 44,972,998,153.44/276,824.80
  6. Step 6: Final answer
    x = 162,460.15

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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.