Home / 207,215.82-310,155.21-107,238.60

Finding the Fourth Proportional to 207,215.82, 310,155.21 and 107,238.60

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Solution

The fourth proportional to 207,215.82, 310,155.21 and 107,238.60 is: 160,511.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,215.82 : 310,155.21 = 107,238.60 : x
  2. Step 2: Convert to fraction form
    207,215.82/310,155.21 = 107,238.60/x
  3. Step 3: Cross multiply
    207,215.82x = 310,155.21 × 107,238.60
  4. Step 4: Simplify right side
    207,215.82x = 33,260,610,503.11
  5. Step 5: Solve for x
    x = 33,260,610,503.11/207,215.82
  6. Step 6: Final answer
    x = 160,511.93

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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.