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Finding the Fourth Proportional to 202,356.11, 279,270.43 and 151,280.39

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Solution

The fourth proportional to 202,356.11, 279,270.43 and 151,280.39 is: 208,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,356.11 : 279,270.43 = 151,280.39 : x
  2. Step 2: Convert to fraction form
    202,356.11/279,270.43 = 151,280.39/x
  3. Step 3: Cross multiply
    202,356.11x = 279,270.43 × 151,280.39
  4. Step 4: Simplify right side
    202,356.11x = 42,248,137,791.31
  5. Step 5: Solve for x
    x = 42,248,137,791.31/202,356.11
  6. Step 6: Final answer
    x = 208,781.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.