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Finding the Fourth Proportional to 249,538.80, 374,324.40 and 131,440.80

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Solution

The fourth proportional to 249,538.80, 374,324.40 and 131,440.80 is: 197,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,538.80 : 374,324.40 = 131,440.80 : x
  2. Step 2: Convert to fraction form
    249,538.80/374,324.40 = 131,440.80/x
  3. Step 3: Cross multiply
    249,538.80x = 374,324.40 × 131,440.80
  4. Step 4: Simplify right side
    249,538.80x = 49,201,498,595.52
  5. Step 5: Solve for x
    x = 49,201,498,595.52/249,538.80
  6. Step 6: Final answer
    x = 197,169.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.