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Finding the Fourth Proportional to 138,578.04, 207,867.06 and 33,397.11

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Solution

The fourth proportional to 138,578.04, 207,867.06 and 33,397.11 is: 50,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,578.04 : 207,867.06 = 33,397.11 : x
  2. Step 2: Convert to fraction form
    138,578.04/207,867.06 = 33,397.11/x
  3. Step 3: Cross multiply
    138,578.04x = 207,867.06 × 33,397.11
  4. Step 4: Simplify right side
    138,578.04x = 6,942,159,068.20
  5. Step 5: Solve for x
    x = 6,942,159,068.20/138,578.04
  6. Step 6: Final answer
    x = 50,095.67

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Similar ratio
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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.