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Finding the Fourth Proportional to 228,774.60, 342,787.38 and 220,026.60

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Solution

The fourth proportional to 228,774.60, 342,787.38 and 220,026.60 is: 329,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,774.60 : 342,787.38 = 220,026.60 : x
  2. Step 2: Convert to fraction form
    228,774.60/342,787.38 = 220,026.60/x
  3. Step 3: Cross multiply
    228,774.60x = 342,787.38 × 220,026.60
  4. Step 4: Simplify right side
    228,774.60x = 75,422,341,744.31
  5. Step 5: Solve for x
    x = 75,422,341,744.31/228,774.60
  6. Step 6: Final answer
    x = 329,679.70

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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.