Home / 245,921.60-339,367.20-150,421.28

Finding the Fourth Proportional to 245,921.60, 339,367.20 and 150,421.28

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Solution

The fourth proportional to 245,921.60, 339,367.20 and 150,421.28 is: 207,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,921.60 : 339,367.20 = 150,421.28 : x
  2. Step 2: Convert to fraction form
    245,921.60/339,367.20 = 150,421.28/x
  3. Step 3: Cross multiply
    245,921.60x = 339,367.20 × 150,421.28
  4. Step 4: Simplify right side
    245,921.60x = 51,048,048,614.02
  5. Step 5: Solve for x
    x = 51,048,048,614.02/245,921.60
  6. Step 6: Final answer
    x = 207,578.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.