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Finding the Fourth Proportional to 215,479.35, 323,110.89 and 125,551.13

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Solution

The fourth proportional to 215,479.35, 323,110.89 and 125,551.13 is: 188,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,479.35 : 323,110.89 = 125,551.13 : x
  2. Step 2: Convert to fraction form
    215,479.35/323,110.89 = 125,551.13/x
  3. Step 3: Cross multiply
    215,479.35x = 323,110.89 × 125,551.13
  4. Step 4: Simplify right side
    215,479.35x = 40,566,937,354.81
  5. Step 5: Solve for x
    x = 40,566,937,354.81/215,479.35
  6. Step 6: Final answer
    x = 188,263.69

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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.