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Finding the Fourth Proportional to 220,667.79, 330,742.48 and 102,088.65

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Solution

The fourth proportional to 220,667.79, 330,742.48 and 102,088.65 is: 153,013.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,667.79 : 330,742.48 = 102,088.65 : x
  2. Step 2: Convert to fraction form
    220,667.79/330,742.48 = 102,088.65/x
  3. Step 3: Cross multiply
    220,667.79x = 330,742.48 × 102,088.65
  4. Step 4: Simplify right side
    220,667.79x = 33,765,052,454.00
  5. Step 5: Solve for x
    x = 33,765,052,454.00/220,667.79
  6. Step 6: Final answer
    x = 153,013.06

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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.