Home / 249,748.20-374,622.30-220,879.80

Finding the Fourth Proportional to 249,748.20, 374,622.30 and 220,879.80

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Solution

The fourth proportional to 249,748.20, 374,622.30 and 220,879.80 is: 331,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,748.20 : 374,622.30 = 220,879.80 : x
  2. Step 2: Convert to fraction form
    249,748.20/374,622.30 = 220,879.80/x
  3. Step 3: Cross multiply
    249,748.20x = 374,622.30 × 220,879.80
  4. Step 4: Simplify right side
    249,748.20x = 82,746,498,699.54
  5. Step 5: Solve for x
    x = 82,746,498,699.54/249,748.20
  6. Step 6: Final answer
    x = 331,319.70

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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.