Home / 249,451.20-374,176.80-80,971.20

Finding the Fourth Proportional to 249,451.20, 374,176.80 and 80,971.20

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Solution

The fourth proportional to 249,451.20, 374,176.80 and 80,971.20 is: 121,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,451.20 : 374,176.80 = 80,971.20 : x
  2. Step 2: Convert to fraction form
    249,451.20/374,176.80 = 80,971.20/x
  3. Step 3: Cross multiply
    249,451.20x = 374,176.80 × 80,971.20
  4. Step 4: Simplify right side
    249,451.20x = 30,297,544,508.16
  5. Step 5: Solve for x
    x = 30,297,544,508.16/249,451.20
  6. Step 6: Final answer
    x = 121,456.80

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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.