Home / 277,338.12-416,069.28-87,809.76

Finding the Fourth Proportional to 277,338.12, 416,069.28 and 87,809.76

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Solution

The fourth proportional to 277,338.12, 416,069.28 and 87,809.76 is: 131,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,338.12 : 416,069.28 = 87,809.76 : x
  2. Step 2: Convert to fraction form
    277,338.12/416,069.28 = 87,809.76/x
  3. Step 3: Cross multiply
    277,338.12x = 416,069.28 × 87,809.76
  4. Step 4: Simplify right side
    277,338.12x = 36,534,943,620.17
  5. Step 5: Solve for x
    x = 36,534,943,620.17/277,338.12
  6. Step 6: Final answer
    x = 131,734.30

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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.