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Finding the Fourth Proportional to 269,108.80, 403,749.60 and 119,291.20

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Solution

The fourth proportional to 269,108.80, 403,749.60 and 119,291.20 is: 178,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,108.80 : 403,749.60 = 119,291.20 : x
  2. Step 2: Convert to fraction form
    269,108.80/403,749.60 = 119,291.20/x
  3. Step 3: Cross multiply
    269,108.80x = 403,749.60 × 119,291.20
  4. Step 4: Simplify right side
    269,108.80x = 48,163,774,283.52
  5. Step 5: Solve for x
    x = 48,163,774,283.52/269,108.80
  6. Step 6: Final answer
    x = 178,975.10

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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.