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Finding the Fourth Proportional to 289,012.93, 433,560.92 and 89,348.90

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Solution

The fourth proportional to 289,012.93, 433,560.92 and 89,348.90 is: 134,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,012.93 : 433,560.92 = 89,348.90 : x
  2. Step 2: Convert to fraction form
    289,012.93/433,560.92 = 89,348.90/x
  3. Step 3: Cross multiply
    289,012.93x = 433,560.92 × 89,348.90
  4. Step 4: Simplify right side
    289,012.93x = 38,738,188,670.44
  5. Step 5: Solve for x
    x = 38,738,188,670.44/289,012.93
  6. Step 6: Final answer
    x = 134,036.18

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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.