Home / 216,459.20-298,520.28-135,894.23

Finding the Fourth Proportional to 216,459.20, 298,520.28 and 135,894.23

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Solution

The fourth proportional to 216,459.20, 298,520.28 and 135,894.23 is: 187,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,459.20 : 298,520.28 = 135,894.23 : x
  2. Step 2: Convert to fraction form
    216,459.20/298,520.28 = 135,894.23/x
  3. Step 3: Cross multiply
    216,459.20x = 298,520.28 × 135,894.23
  4. Step 4: Simplify right side
    216,459.20x = 40,567,183,589.98
  5. Step 5: Solve for x
    x = 40,567,183,589.98/216,459.20
  6. Step 6: Final answer
    x = 187,412.61

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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.