Home / 256,743.38-385,002.70-121,846.10

Finding the Fourth Proportional to 256,743.38, 385,002.70 and 121,846.10

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Solution

The fourth proportional to 256,743.38, 385,002.70 and 121,846.10 is: 182,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,743.38 : 385,002.70 = 121,846.10 : x
  2. Step 2: Convert to fraction form
    256,743.38/385,002.70 = 121,846.10/x
  3. Step 3: Cross multiply
    256,743.38x = 385,002.70 × 121,846.10
  4. Step 4: Simplify right side
    256,743.38x = 46,911,078,142.36
  5. Step 5: Solve for x
    x = 46,911,078,142.36/256,743.38
  6. Step 6: Final answer
    x = 182,715.83

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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.