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Finding the Fourth Proportional to 269,214.70, 403,749.15 and 79,674.70

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Solution

The fourth proportional to 269,214.70, 403,749.15 and 79,674.70 is: 119,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,214.70 : 403,749.15 = 79,674.70 : x
  2. Step 2: Convert to fraction form
    269,214.70/403,749.15 = 79,674.70/x
  3. Step 3: Cross multiply
    269,214.70x = 403,749.15 × 79,674.70
  4. Step 4: Simplify right side
    269,214.70x = 32,168,592,401.51
  5. Step 5: Solve for x
    x = 32,168,592,401.51/269,214.70
  6. Step 6: Final answer
    x = 119,490.48

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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.