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Finding the Fourth Proportional to 155,351.97, 215,197.52 and 152,202.69

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Solution

The fourth proportional to 155,351.97, 215,197.52 and 152,202.69 is: 210,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,351.97 : 215,197.52 = 152,202.69 : x
  2. Step 2: Convert to fraction form
    155,351.97/215,197.52 = 152,202.69/x
  3. Step 3: Cross multiply
    155,351.97x = 215,197.52 × 152,202.69
  4. Step 4: Simplify right side
    155,351.97x = 32,753,640,664.32
  5. Step 5: Solve for x
    x = 32,753,640,664.32/155,351.97
  6. Step 6: Final answer
    x = 210,835.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.