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Finding the Fourth Proportional to 289,364.80, 433,528.80 and 247,892.80

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Solution

The fourth proportional to 289,364.80, 433,528.80 and 247,892.80 is: 371,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,364.80 : 433,528.80 = 247,892.80 : x
  2. Step 2: Convert to fraction form
    289,364.80/433,528.80 = 247,892.80/x
  3. Step 3: Cross multiply
    289,364.80x = 433,528.80 × 247,892.80
  4. Step 4: Simplify right side
    289,364.80x = 107,468,668,112.64
  5. Step 5: Solve for x
    x = 107,468,668,112.64/289,364.80
  6. Step 6: Final answer
    x = 371,395.10

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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.