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Finding the Fourth Proportional to 215,625.97, 323,206.71 and 103,066.84

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Solution

The fourth proportional to 215,625.97, 323,206.71 and 103,066.84 is: 154,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,625.97 : 323,206.71 = 103,066.84 : x
  2. Step 2: Convert to fraction form
    215,625.97/323,206.71 = 103,066.84/x
  3. Step 3: Cross multiply
    215,625.97x = 323,206.71 × 103,066.84
  4. Step 4: Simplify right side
    215,625.97x = 33,311,894,266.50
  5. Step 5: Solve for x
    x = 33,311,894,266.50/215,625.97
  6. Step 6: Final answer
    x = 154,489.25

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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.