Home / 257,910.48-355,916.64-144,733.20

Finding the Fourth Proportional to 257,910.48, 355,916.64 and 144,733.20

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Solution

The fourth proportional to 257,910.48, 355,916.64 and 144,733.20 is: 199,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,910.48 : 355,916.64 = 144,733.20 : x
  2. Step 2: Convert to fraction form
    257,910.48/355,916.64 = 144,733.20/x
  3. Step 3: Cross multiply
    257,910.48x = 355,916.64 × 144,733.20
  4. Step 4: Simplify right side
    257,910.48x = 51,512,954,240.45
  5. Step 5: Solve for x
    x = 51,512,954,240.45/257,910.48
  6. Step 6: Final answer
    x = 199,731.92

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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.