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Finding the Fourth Proportional to 663,373, 995,215.02 and 220,141

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Solution

The fourth proportional to 663,373, 995,215.02 and 220,141 is: 330,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,373 : 995,215.02 = 220,141 : x
  2. Step 2: Convert to fraction form
    663,373/995,215.02 = 220,141/x
  3. Step 3: Cross multiply
    663,373x = 995,215.02 × 220,141
  4. Step 4: Simplify right side
    663,373x = 219,087,629,717.82
  5. Step 5: Solve for x
    x = 219,087,629,717.82/663,373
  6. Step 6: Final answer
    x = 330,263.11

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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.