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Finding the Fourth Proportional to 435,371.87, 652,806.35 and 168,820.98

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Solution

The fourth proportional to 435,371.87, 652,806.35 and 168,820.98 is: 253,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,371.87 : 652,806.35 = 168,820.98 : x
  2. Step 2: Convert to fraction form
    435,371.87/652,806.35 = 168,820.98/x
  3. Step 3: Cross multiply
    435,371.87x = 652,806.35 × 168,820.98
  4. Step 4: Simplify right side
    435,371.87x = 110,207,406,913.12
  5. Step 5: Solve for x
    x = 110,207,406,913.12/435,371.87
  6. Step 6: Final answer
    x = 253,133.97

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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.