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Finding the Fourth Proportional to 291,881.81, 402,791.52 and 164,557.51

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Solution

The fourth proportional to 291,881.81, 402,791.52 and 164,557.51 is: 227,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,881.81 : 402,791.52 = 164,557.51 : x
  2. Step 2: Convert to fraction form
    291,881.81/402,791.52 = 164,557.51/x
  3. Step 3: Cross multiply
    291,881.81x = 402,791.52 × 164,557.51
  4. Step 4: Simplify right side
    291,881.81x = 66,282,369,580.32
  5. Step 5: Solve for x
    x = 66,282,369,580.32/291,881.81
  6. Step 6: Final answer
    x = 227,086.33

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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.