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Finding the Fourth Proportional to 209,244.24, 313,866.44 and 84,672.72

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Solution

The fourth proportional to 209,244.24, 313,866.44 and 84,672.72 is: 127,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,244.24 : 313,866.44 = 84,672.72 : x
  2. Step 2: Convert to fraction form
    209,244.24/313,866.44 = 84,672.72/x
  3. Step 3: Cross multiply
    209,244.24x = 313,866.44 × 84,672.72
  4. Step 4: Simplify right side
    209,244.24x = 26,575,925,191.52
  5. Step 5: Solve for x
    x = 26,575,925,191.52/209,244.24
  6. Step 6: Final answer
    x = 127,009.11

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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.