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Finding the Fourth Proportional to 216,124.92, 298,264.05 and 120,630.78

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Solution

The fourth proportional to 216,124.92, 298,264.05 and 120,630.78 is: 166,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,124.92 : 298,264.05 = 120,630.78 : x
  2. Step 2: Convert to fraction form
    216,124.92/298,264.05 = 120,630.78/x
  3. Step 3: Cross multiply
    216,124.92x = 298,264.05 × 120,630.78
  4. Step 4: Simplify right side
    216,124.92x = 35,979,824,997.46
  5. Step 5: Solve for x
    x = 35,979,824,997.46/216,124.92
  6. Step 6: Final answer
    x = 166,476.98

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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.