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Finding the Fourth Proportional to 155,168.20, 232,406.70 and 127,520.20

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Solution

The fourth proportional to 155,168.20, 232,406.70 and 127,520.20 is: 190,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,168.20 : 232,406.70 = 127,520.20 : x
  2. Step 2: Convert to fraction form
    155,168.20/232,406.70 = 127,520.20/x
  3. Step 3: Cross multiply
    155,168.20x = 232,406.70 × 127,520.20
  4. Step 4: Simplify right side
    155,168.20x = 29,636,548,865.34
  5. Step 5: Solve for x
    x = 29,636,548,865.34/155,168.20
  6. Step 6: Final answer
    x = 190,996.28

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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.