Home / 207,217.20-310,643.55-140,440.80

Finding the Fourth Proportional to 207,217.20, 310,643.55 and 140,440.80

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Solution

The fourth proportional to 207,217.20, 310,643.55 and 140,440.80 is: 210,537.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,217.20 : 310,643.55 = 140,440.80 : x
  2. Step 2: Convert to fraction form
    207,217.20/310,643.55 = 140,440.80/x
  3. Step 3: Cross multiply
    207,217.20x = 310,643.55 × 140,440.80
  4. Step 4: Simplify right side
    207,217.20x = 43,627,028,676.84
  5. Step 5: Solve for x
    x = 43,627,028,676.84/207,217.20
  6. Step 6: Final answer
    x = 210,537.68

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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.