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Finding the Fourth Proportional to 269,533.70, 404,300.55 and 80,000.90

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Solution

The fourth proportional to 269,533.70, 404,300.55 and 80,000.90 is: 120,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,533.70 : 404,300.55 = 80,000.90 : x
  2. Step 2: Convert to fraction form
    269,533.70/404,300.55 = 80,000.90/x
  3. Step 3: Cross multiply
    269,533.70x = 404,300.55 × 80,000.90
  4. Step 4: Simplify right side
    269,533.70x = 32,344,407,870.50
  5. Step 5: Solve for x
    x = 32,344,407,870.50/269,533.70
  6. Step 6: Final answer
    x = 120,001.35

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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.