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Finding the Fourth Proportional to 144,820.20, 217,230.30 and 105,191.40

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Solution

The fourth proportional to 144,820.20, 217,230.30 and 105,191.40 is: 157,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,820.20 : 217,230.30 = 105,191.40 : x
  2. Step 2: Convert to fraction form
    144,820.20/217,230.30 = 105,191.40/x
  3. Step 3: Cross multiply
    144,820.20x = 217,230.30 × 105,191.40
  4. Step 4: Simplify right side
    144,820.20x = 22,850,759,379.42
  5. Step 5: Solve for x
    x = 22,850,759,379.42/144,820.20
  6. Step 6: Final answer
    x = 157,787.10

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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.