Home / 204,330.62-306,492.85-91,931.47

Finding the Fourth Proportional to 204,330.62, 306,492.85 and 91,931.47

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Solution

The fourth proportional to 204,330.62, 306,492.85 and 91,931.47 is: 137,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,330.62 : 306,492.85 = 91,931.47 : x
  2. Step 2: Convert to fraction form
    204,330.62/306,492.85 = 91,931.47/x
  3. Step 3: Cross multiply
    204,330.62x = 306,492.85 × 91,931.47
  4. Step 4: Simplify right side
    204,330.62x = 28,176,337,593.67
  5. Step 5: Solve for x
    x = 28,176,337,593.67/204,330.62
  6. Step 6: Final answer
    x = 137,895.81

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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.