Home / 218,950.92-302,173.20-137,292.18

Finding the Fourth Proportional to 218,950.92, 302,173.20 and 137,292.18

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Solution

The fourth proportional to 218,950.92, 302,173.20 and 137,292.18 is: 189,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,950.92 : 302,173.20 = 137,292.18 : x
  2. Step 2: Convert to fraction form
    218,950.92/302,173.20 = 137,292.18/x
  3. Step 3: Cross multiply
    218,950.92x = 302,173.20 × 137,292.18
  4. Step 4: Simplify right side
    218,950.92x = 41,486,017,365.58
  5. Step 5: Solve for x
    x = 41,486,017,365.58/218,950.92
  6. Step 6: Final answer
    x = 189,476.33

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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.