Home / 339,981.45-509,972.18-162,834.45

Finding the Fourth Proportional to 339,981.45, 509,972.18 and 162,834.45

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Solution

The fourth proportional to 339,981.45, 509,972.18 and 162,834.45 is: 244,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,981.45 : 509,972.18 = 162,834.45 : x
  2. Step 2: Convert to fraction form
    339,981.45/509,972.18 = 162,834.45/x
  3. Step 3: Cross multiply
    339,981.45x = 509,972.18 × 162,834.45
  4. Step 4: Simplify right side
    339,981.45x = 83,041,039,445.60
  5. Step 5: Solve for x
    x = 83,041,039,445.60/339,981.45
  6. Step 6: Final answer
    x = 244,251.68

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Double scale
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Similar ratio
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1.5x scale

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.