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Finding the Fourth Proportional to 245,750.40, 367,934.40 and 220,867.20

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Solution

The fourth proportional to 245,750.40, 367,934.40 and 220,867.20 is: 330,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,750.40 : 367,934.40 = 220,867.20 : x
  2. Step 2: Convert to fraction form
    245,750.40/367,934.40 = 220,867.20/x
  3. Step 3: Cross multiply
    245,750.40x = 367,934.40 × 220,867.20
  4. Step 4: Simplify right side
    245,750.40x = 81,264,640,711.68
  5. Step 5: Solve for x
    x = 81,264,640,711.68/245,750.40
  6. Step 6: Final answer
    x = 330,679.59

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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.