Home / 256,109.10-353,466.18-142,939.14

Finding the Fourth Proportional to 256,109.10, 353,466.18 and 142,939.14

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Solution

The fourth proportional to 256,109.10, 353,466.18 and 142,939.14 is: 197,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,109.10 : 353,466.18 = 142,939.14 : x
  2. Step 2: Convert to fraction form
    256,109.10/353,466.18 = 142,939.14/x
  3. Step 3: Cross multiply
    256,109.10x = 353,466.18 × 142,939.14
  4. Step 4: Simplify right side
    256,109.10x = 50,524,151,788.29
  5. Step 5: Solve for x
    x = 50,524,151,788.29/256,109.10
  6. Step 6: Final answer
    x = 197,275.89

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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.