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Finding the Fourth Proportional to 215,722.84, 323,730.08 and 75,482.68

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Solution

The fourth proportional to 215,722.84, 323,730.08 and 75,482.68 is: 113,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,722.84 : 323,730.08 = 75,482.68 : x
  2. Step 2: Convert to fraction form
    215,722.84/323,730.08 = 75,482.68/x
  3. Step 3: Cross multiply
    215,722.84x = 323,730.08 × 75,482.68
  4. Step 4: Simplify right side
    215,722.84x = 24,436,014,035.01
  5. Step 5: Solve for x
    x = 24,436,014,035.01/215,722.84
  6. Step 6: Final answer
    x = 113,275.04

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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.