Home / 216,454.08-298,706.10-120,960.78

Finding the Fourth Proportional to 216,454.08, 298,706.10 and 120,960.78

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Solution

The fourth proportional to 216,454.08, 298,706.10 and 120,960.78 is: 166,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,454.08 : 298,706.10 = 120,960.78 : x
  2. Step 2: Convert to fraction form
    216,454.08/298,706.10 = 120,960.78/x
  3. Step 3: Cross multiply
    216,454.08x = 298,706.10 × 120,960.78
  4. Step 4: Simplify right side
    216,454.08x = 36,131,722,846.76
  5. Step 5: Solve for x
    x = 36,131,722,846.76/216,454.08
  6. Step 6: Final answer
    x = 166,925.58

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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.