Home / 216,444.20-298,499.60-135,879.22

Finding the Fourth Proportional to 216,444.20, 298,499.60 and 135,879.22

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Solution

The fourth proportional to 216,444.20, 298,499.60 and 135,879.22 is: 187,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,444.20 : 298,499.60 = 135,879.22 : x
  2. Step 2: Convert to fraction form
    216,444.20/298,499.60 = 135,879.22/x
  3. Step 3: Cross multiply
    216,444.20x = 298,499.60 × 135,879.22
  4. Step 4: Simplify right side
    216,444.20x = 40,559,890,646.42
  5. Step 5: Solve for x
    x = 40,559,890,646.42/216,444.20
  6. Step 6: Final answer
    x = 187,391.90

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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.