Home / 434,711.70-652,067.55-135,211.20

Finding the Fourth Proportional to 434,711.70, 652,067.55 and 135,211.20

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Solution

The fourth proportional to 434,711.70, 652,067.55 and 135,211.20 is: 202,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,711.70 : 652,067.55 = 135,211.20 : x
  2. Step 2: Convert to fraction form
    434,711.70/652,067.55 = 135,211.20/x
  3. Step 3: Cross multiply
    434,711.70x = 652,067.55 × 135,211.20
  4. Step 4: Simplify right side
    434,711.70x = 88,166,835,916.56
  5. Step 5: Solve for x
    x = 88,166,835,916.56/434,711.70
  6. Step 6: Final answer
    x = 202,816.80

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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.