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Finding the Fourth Proportional to 269,715.35, 404,638.74 and 89,800.45

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Solution

The fourth proportional to 269,715.35, 404,638.74 and 89,800.45 is: 134,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,715.35 : 404,638.74 = 89,800.45 : x
  2. Step 2: Convert to fraction form
    269,715.35/404,638.74 = 89,800.45/x
  3. Step 3: Cross multiply
    269,715.35x = 404,638.74 × 89,800.45
  4. Step 4: Simplify right side
    269,715.35x = 36,336,739,927.84
  5. Step 5: Solve for x
    x = 36,336,739,927.84/269,715.35
  6. Step 6: Final answer
    x = 134,722.55

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1.5x scale

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.