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Finding the Fourth Proportional to 213,660.03, 320,264.04 and 80,482.68

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Solution

The fourth proportional to 213,660.03, 320,264.04 and 80,482.68 is: 120,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,660.03 : 320,264.04 = 80,482.68 : x
  2. Step 2: Convert to fraction form
    213,660.03/320,264.04 = 80,482.68/x
  3. Step 3: Cross multiply
    213,660.03x = 320,264.04 × 80,482.68
  4. Step 4: Simplify right side
    213,660.03x = 25,775,708,246.83
  5. Step 5: Solve for x
    x = 25,775,708,246.83/213,660.03
  6. Step 6: Final answer
    x = 120,638.89

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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.