Home / 257,689.08-355,610.25-144,514.26

Finding the Fourth Proportional to 257,689.08, 355,610.25 and 144,514.26

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Solution

The fourth proportional to 257,689.08, 355,610.25 and 144,514.26 is: 199,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,689.08 : 355,610.25 = 144,514.26 : x
  2. Step 2: Convert to fraction form
    257,689.08/355,610.25 = 144,514.26/x
  3. Step 3: Cross multiply
    257,689.08x = 355,610.25 × 144,514.26
  4. Step 4: Simplify right side
    257,689.08x = 51,390,752,127.17
  5. Step 5: Solve for x
    x = 51,390,752,127.17/257,689.08
  6. Step 6: Final answer
    x = 199,429.30

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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.