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Finding the Fourth Proportional to 216,252.72, 298,411.56 and 120,753.72

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Solution

The fourth proportional to 216,252.72, 298,411.56 and 120,753.72 is: 166,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,252.72 : 298,411.56 = 120,753.72 : x
  2. Step 2: Convert to fraction form
    216,252.72/298,411.56 = 120,753.72/x
  3. Step 3: Cross multiply
    216,252.72x = 298,411.56 × 120,753.72
  4. Step 4: Simplify right side
    216,252.72x = 36,034,305,961.00
  5. Step 5: Solve for x
    x = 36,034,305,961.00/216,252.72
  6. Step 6: Final answer
    x = 166,630.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.