Home / 257,272.92-355,040.40-149,840.16

Finding the Fourth Proportional to 257,272.92, 355,040.40 and 149,840.16

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Solution

The fourth proportional to 257,272.92, 355,040.40 and 149,840.16 is: 206,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,272.92 : 355,040.40 = 149,840.16 : x
  2. Step 2: Convert to fraction form
    257,272.92/355,040.40 = 149,840.16/x
  3. Step 3: Cross multiply
    257,272.92x = 355,040.40 × 149,840.16
  4. Step 4: Simplify right side
    257,272.92x = 53,199,310,342.46
  5. Step 5: Solve for x
    x = 53,199,310,342.46/257,272.92
  6. Step 6: Final answer
    x = 206,781.62

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1.5x scale

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.