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Finding the Fourth Proportional to 215,373.82, 297,215.88 and 119,878.46

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Solution

The fourth proportional to 215,373.82, 297,215.88 and 119,878.46 is: 165,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,373.82 : 297,215.88 = 119,878.46 : x
  2. Step 2: Convert to fraction form
    215,373.82/297,215.88 = 119,878.46/x
  3. Step 3: Cross multiply
    215,373.82x = 297,215.88 × 119,878.46
  4. Step 4: Simplify right side
    215,373.82x = 35,629,781,981.94
  5. Step 5: Solve for x
    x = 35,629,781,981.94/215,373.82
  6. Step 6: Final answer
    x = 165,432.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.