Home / 204,830.12-282,423.78-140,330.28

Finding the Fourth Proportional to 204,830.12, 282,423.78 and 140,330.28

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Solution

The fourth proportional to 204,830.12, 282,423.78 and 140,330.28 is: 193,490.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,830.12 : 282,423.78 = 140,330.28 : x
  2. Step 2: Convert to fraction form
    204,830.12/282,423.78 = 140,330.28/x
  3. Step 3: Cross multiply
    204,830.12x = 282,423.78 × 140,330.28
  4. Step 4: Simplify right side
    204,830.12x = 39,632,608,126.06
  5. Step 5: Solve for x
    x = 39,632,608,126.06/204,830.12
  6. Step 6: Final answer
    x = 193,490.14

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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.