Home / 217,971.40-326,957.10-112,822.60

Finding the Fourth Proportional to 217,971.40, 326,957.10 and 112,822.60

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Solution

The fourth proportional to 217,971.40, 326,957.10 and 112,822.60 is: 169,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,971.40 : 326,957.10 = 112,822.60 : x
  2. Step 2: Convert to fraction form
    217,971.40/326,957.10 = 112,822.60/x
  3. Step 3: Cross multiply
    217,971.40x = 326,957.10 × 112,822.60
  4. Step 4: Simplify right side
    217,971.40x = 36,888,150,110.46
  5. Step 5: Solve for x
    x = 36,888,150,110.46/217,971.40
  6. Step 6: Final answer
    x = 169,233.90

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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.