Home / 256,721.31-354,157.54-166,106.81

Finding the Fourth Proportional to 256,721.31, 354,157.54 and 166,106.81

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Solution

The fourth proportional to 256,721.31, 354,157.54 and 166,106.81 is: 229,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,721.31 : 354,157.54 = 166,106.81 : x
  2. Step 2: Convert to fraction form
    256,721.31/354,157.54 = 166,106.81/x
  3. Step 3: Cross multiply
    256,721.31x = 354,157.54 × 166,106.81
  4. Step 4: Simplify right side
    256,721.31x = 58,827,979,676.97
  5. Step 5: Solve for x
    x = 58,827,979,676.97/256,721.31
  6. Step 6: Final answer
    x = 229,151.14

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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.