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Finding the Fourth Proportional to 256,681.81, 384,924.30 and 88,170.73

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Solution

The fourth proportional to 256,681.81, 384,924.30 and 88,170.73 is: 132,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,681.81 : 384,924.30 = 88,170.73 : x
  2. Step 2: Convert to fraction form
    256,681.81/384,924.30 = 88,170.73/x
  3. Step 3: Cross multiply
    256,681.81x = 384,924.30 × 88,170.73
  4. Step 4: Simplify right side
    256,681.81x = 33,939,055,728.75
  5. Step 5: Solve for x
    x = 33,939,055,728.75/256,681.81
  6. Step 6: Final answer
    x = 132,222.29

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1.5x scale

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.