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Finding the Fourth Proportional to 201,853.56, 278,618.22 and 117,008.76

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Solution

The fourth proportional to 201,853.56, 278,618.22 and 117,008.76 is: 161,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,853.56 : 278,618.22 = 117,008.76 : x
  2. Step 2: Convert to fraction form
    201,853.56/278,618.22 = 117,008.76/x
  3. Step 3: Cross multiply
    201,853.56x = 278,618.22 × 117,008.76
  4. Step 4: Simplify right side
    201,853.56x = 32,600,772,435.61
  5. Step 5: Solve for x
    x = 32,600,772,435.61/201,853.56
  6. Step 6: Final answer
    x = 161,507.05

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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.