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Finding the Fourth Proportional to 202,495.30, 303,742.95 and 136,140.10

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Solution

The fourth proportional to 202,495.30, 303,742.95 and 136,140.10 is: 204,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,495.30 : 303,742.95 = 136,140.10 : x
  2. Step 2: Convert to fraction form
    202,495.30/303,742.95 = 136,140.10/x
  3. Step 3: Cross multiply
    202,495.30x = 303,742.95 × 136,140.10
  4. Step 4: Simplify right side
    202,495.30x = 41,351,595,587.30
  5. Step 5: Solve for x
    x = 41,351,595,587.30/202,495.30
  6. Step 6: Final answer
    x = 204,210.15

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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.