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Finding the Fourth Proportional to 280,592.09, 420,950.33 and 80,896.89

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Solution

The fourth proportional to 280,592.09, 420,950.33 and 80,896.89 is: 121,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,592.09 : 420,950.33 = 80,896.89 : x
  2. Step 2: Convert to fraction form
    280,592.09/420,950.33 = 80,896.89/x
  3. Step 3: Cross multiply
    280,592.09x = 420,950.33 × 80,896.89
  4. Step 4: Simplify right side
    280,592.09x = 34,053,574,018.92
  5. Step 5: Solve for x
    x = 34,053,574,018.92/280,592.09
  6. Step 6: Final answer
    x = 121,363.27

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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.