Home / 257,938.75-355,971.27-144,761.50

Finding the Fourth Proportional to 257,938.75, 355,971.27 and 144,761.50

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Solution

The fourth proportional to 257,938.75, 355,971.27 and 144,761.50 is: 199,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,938.75 : 355,971.27 = 144,761.50 : x
  2. Step 2: Convert to fraction form
    257,938.75/355,971.27 = 144,761.50/x
  3. Step 3: Cross multiply
    257,938.75x = 355,971.27 × 144,761.50
  4. Step 4: Simplify right side
    257,938.75x = 51,530,935,002.11
  5. Step 5: Solve for x
    x = 51,530,935,002.11/257,938.75
  6. Step 6: Final answer
    x = 199,779.73

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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.