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Finding the Fourth Proportional to 256,062.48, 353,507.76 and 154,112.97

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Solution

The fourth proportional to 256,062.48, 353,507.76 and 154,112.97 is: 212,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,062.48 : 353,507.76 = 154,112.97 : x
  2. Step 2: Convert to fraction form
    256,062.48/353,507.76 = 154,112.97/x
  3. Step 3: Cross multiply
    256,062.48x = 353,507.76 × 154,112.97
  4. Step 4: Simplify right side
    256,062.48x = 54,480,130,041.08
  5. Step 5: Solve for x
    x = 54,480,130,041.08/256,062.48
  6. Step 6: Final answer
    x = 212,761.08

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1.5x scale

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.