Home / 217,315.89-299,994.12-136,861.62

Finding the Fourth Proportional to 217,315.89, 299,994.12 and 136,861.62

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Solution

The fourth proportional to 217,315.89, 299,994.12 and 136,861.62 is: 188,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,315.89 : 299,994.12 = 136,861.62 : x
  2. Step 2: Convert to fraction form
    217,315.89/299,994.12 = 136,861.62/x
  3. Step 3: Cross multiply
    217,315.89x = 299,994.12 × 136,861.62
  4. Step 4: Simplify right side
    217,315.89x = 41,057,681,253.67
  5. Step 5: Solve for x
    x = 41,057,681,253.67/217,315.89
  6. Step 6: Final answer
    x = 188,930.88

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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.