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Finding the Fourth Proportional to 155,352.97, 215,198.90 and 152,203.69

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Solution

The fourth proportional to 155,352.97, 215,198.90 and 152,203.69 is: 210,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,352.97 : 215,198.90 = 152,203.69 : x
  2. Step 2: Convert to fraction form
    155,352.97/215,198.90 = 152,203.69/x
  3. Step 3: Cross multiply
    155,352.97x = 215,198.90 × 152,203.69
  4. Step 4: Simplify right side
    155,352.97x = 32,754,066,663.94
  5. Step 5: Solve for x
    x = 32,754,066,663.94/155,352.97
  6. Step 6: Final answer
    x = 210,836.44

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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.