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Finding the Fourth Proportional to 663,711.68, 995,571.12 and 165,075.68

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Solution

The fourth proportional to 663,711.68, 995,571.12 and 165,075.68 is: 247,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,711.68 : 995,571.12 = 165,075.68 : x
  2. Step 2: Convert to fraction form
    663,711.68/995,571.12 = 165,075.68/x
  3. Step 3: Cross multiply
    663,711.68x = 995,571.12 × 165,075.68
  4. Step 4: Simplify right side
    663,711.68x = 164,344,579,622.36
  5. Step 5: Solve for x
    x = 164,344,579,622.36/663,711.68
  6. Step 6: Final answer
    x = 247,614.42

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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.