Home / 215,748.11-323,590.95-65,948.18

Finding the Fourth Proportional to 215,748.11, 323,590.95 and 65,948.18

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Solution

The fourth proportional to 215,748.11, 323,590.95 and 65,948.18 is: 98,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,748.11 : 323,590.95 = 65,948.18 : x
  2. Step 2: Convert to fraction form
    215,748.11/323,590.95 = 65,948.18/x
  3. Step 3: Cross multiply
    215,748.11x = 323,590.95 × 65,948.18
  4. Step 4: Simplify right side
    215,748.11x = 21,340,232,599.02
  5. Step 5: Solve for x
    x = 21,340,232,599.02/215,748.11
  6. Step 6: Final answer
    x = 98,912.72

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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.