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Finding the Fourth Proportional to 299,040.39, 412,685.69 and 163,081.76

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Solution

The fourth proportional to 299,040.39, 412,685.69 and 163,081.76 is: 225,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,040.39 : 412,685.69 = 163,081.76 : x
  2. Step 2: Convert to fraction form
    299,040.39/412,685.69 = 163,081.76/x
  3. Step 3: Cross multiply
    299,040.39x = 412,685.69 × 163,081.76
  4. Step 4: Simplify right side
    299,040.39x = 67,301,505,773.18
  5. Step 5: Solve for x
    x = 67,301,505,773.18/299,040.39
  6. Step 6: Final answer
    x = 225,058.25

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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.