Home / 257,649.72-355,556.66-144,472.52

Finding the Fourth Proportional to 257,649.72, 355,556.66 and 144,472.52

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Solution

The fourth proportional to 257,649.72, 355,556.66 and 144,472.52 is: 199,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,649.72 : 355,556.66 = 144,472.52 : x
  2. Step 2: Convert to fraction form
    257,649.72/355,556.66 = 144,472.52/x
  3. Step 3: Cross multiply
    257,649.72x = 355,556.66 × 144,472.52
  4. Step 4: Simplify right side
    257,649.72x = 51,368,166,672.98
  5. Step 5: Solve for x
    x = 51,368,166,672.98/257,649.72
  6. Step 6: Final answer
    x = 199,372.10

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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.