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Finding the Fourth Proportional to 646,373.91, 969,745.85 and 220,003.68

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Solution

The fourth proportional to 646,373.91, 969,745.85 and 220,003.68 is: 330,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,373.91 : 969,745.85 = 220,003.68 : x
  2. Step 2: Convert to fraction form
    646,373.91/969,745.85 = 220,003.68/x
  3. Step 3: Cross multiply
    646,373.91x = 969,745.85 × 220,003.68
  4. Step 4: Simplify right side
    646,373.91x = 213,347,654,564.71
  5. Step 5: Solve for x
    x = 213,347,654,564.71/646,373.91
  6. Step 6: Final answer
    x = 330,068.48

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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.