Home / 381,839.60-526,907.79-220,705.08

Finding the Fourth Proportional to 381,839.60, 526,907.79 and 220,705.08

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Solution

The fourth proportional to 381,839.60, 526,907.79 and 220,705.08 is: 304,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,839.60 : 526,907.79 = 220,705.08 : x
  2. Step 2: Convert to fraction form
    381,839.60/526,907.79 = 220,705.08/x
  3. Step 3: Cross multiply
    381,839.60x = 526,907.79 × 220,705.08
  4. Step 4: Simplify right side
    381,839.60x = 116,291,225,944.57
  5. Step 5: Solve for x
    x = 116,291,225,944.57/381,839.60
  6. Step 6: Final answer
    x = 304,555.17

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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.