Home / 257,821.62-355,836.64-150,391.72

Finding the Fourth Proportional to 257,821.62, 355,836.64 and 150,391.72

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Solution

The fourth proportional to 257,821.62, 355,836.64 and 150,391.72 is: 207,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,821.62 : 355,836.64 = 150,391.72 : x
  2. Step 2: Convert to fraction form
    257,821.62/355,836.64 = 150,391.72/x
  3. Step 3: Cross multiply
    257,821.62x = 355,836.64 × 150,391.72
  4. Step 4: Simplify right side
    257,821.62x = 53,514,884,328.62
  5. Step 5: Solve for x
    x = 53,514,884,328.62/257,821.62
  6. Step 6: Final answer
    x = 207,565.54

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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.