Home / 257,901.18-355,910.67-144,730.86

Finding the Fourth Proportional to 257,901.18, 355,910.67 and 144,730.86

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Solution

The fourth proportional to 257,901.18, 355,910.67 and 144,730.86 is: 199,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,901.18 : 355,910.67 = 144,730.86 : x
  2. Step 2: Convert to fraction form
    257,901.18/355,910.67 = 144,730.86/x
  3. Step 3: Cross multiply
    257,901.18x = 355,910.67 × 144,730.86
  4. Step 4: Simplify right side
    257,901.18x = 51,511,257,352.28
  5. Step 5: Solve for x
    x = 51,511,257,352.28/257,901.18
  6. Step 6: Final answer
    x = 199,732.54

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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.