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Finding the Fourth Proportional to 201,480.56, 278,032.24 and 110,821.90

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Solution

The fourth proportional to 201,480.56, 278,032.24 and 110,821.90 is: 152,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,480.56 : 278,032.24 = 110,821.90 : x
  2. Step 2: Convert to fraction form
    201,480.56/278,032.24 = 110,821.90/x
  3. Step 3: Cross multiply
    201,480.56x = 278,032.24 × 110,821.90
  4. Step 4: Simplify right side
    201,480.56x = 30,812,061,098.06
  5. Step 5: Solve for x
    x = 30,812,061,098.06/201,480.56
  6. Step 6: Final answer
    x = 152,928.21

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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.