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Finding the Fourth Proportional to 202,210.80, 303,316.20 and 69,071.10

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Solution

The fourth proportional to 202,210.80, 303,316.20 and 69,071.10 is: 103,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,210.80 : 303,316.20 = 69,071.10 : x
  2. Step 2: Convert to fraction form
    202,210.80/303,316.20 = 69,071.10/x
  3. Step 3: Cross multiply
    202,210.80x = 303,316.20 × 69,071.10
  4. Step 4: Simplify right side
    202,210.80x = 20,950,383,581.82
  5. Step 5: Solve for x
    x = 20,950,383,581.82/202,210.80
  6. Step 6: Final answer
    x = 103,606.65

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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.