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Finding the Fourth Proportional to 202,326.30, 303,489.45 and 127,530.90

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Solution

The fourth proportional to 202,326.30, 303,489.45 and 127,530.90 is: 191,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,326.30 : 303,489.45 = 127,530.90 : x
  2. Step 2: Convert to fraction form
    202,326.30/303,489.45 = 127,530.90/x
  3. Step 3: Cross multiply
    202,326.30x = 303,489.45 × 127,530.90
  4. Step 4: Simplify right side
    202,326.30x = 38,704,282,699.01
  5. Step 5: Solve for x
    x = 38,704,282,699.01/202,326.30
  6. Step 6: Final answer
    x = 191,296.35

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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.