Home / 256,721.12-354,157.28-166,106.62

Finding the Fourth Proportional to 256,721.12, 354,157.28 and 166,106.62

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Solution

The fourth proportional to 256,721.12, 354,157.28 and 166,106.62 is: 229,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,721.12 : 354,157.28 = 166,106.62 : x
  2. Step 2: Convert to fraction form
    256,721.12/354,157.28 = 166,106.62/x
  3. Step 3: Cross multiply
    256,721.12x = 354,157.28 × 166,106.62
  4. Step 4: Simplify right side
    256,721.12x = 58,827,868,964.26
  5. Step 5: Solve for x
    x = 58,827,868,964.26/256,721.12
  6. Step 6: Final answer
    x = 229,150.87

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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.