Home / 216,456.18-298,708.64-120,962.84

Finding the Fourth Proportional to 216,456.18, 298,708.64 and 120,962.84

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Solution

The fourth proportional to 216,456.18, 298,708.64 and 120,962.84 is: 166,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,456.18 : 298,708.64 = 120,962.84 : x
  2. Step 2: Convert to fraction form
    216,456.18/298,708.64 = 120,962.84/x
  3. Step 3: Cross multiply
    216,456.18x = 298,708.64 × 120,962.84
  4. Step 4: Simplify right side
    216,456.18x = 36,132,645,426.94
  5. Step 5: Solve for x
    x = 36,132,645,426.94/216,456.18
  6. Step 6: Final answer
    x = 166,928.22

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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.