Home / 486,150-670,887.14-268,358.80

Finding the Fourth Proportional to 486,150, 670,887.14 and 268,358.80

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Solution

The fourth proportional to 486,150, 670,887.14 and 268,358.80 is: 370,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,150 : 670,887.14 = 268,358.80 : x
  2. Step 2: Convert to fraction form
    486,150/670,887.14 = 268,358.80/x
  3. Step 3: Cross multiply
    486,150x = 670,887.14 × 268,358.80
  4. Step 4: Simplify right side
    486,150x = 180,038,467,825.83
  5. Step 5: Solve for x
    x = 180,038,467,825.83/486,150
  6. Step 6: Final answer
    x = 370,335.22

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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.