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Finding the Fourth Proportional to 291,341.27, 402,058.47 and 164,021.42

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Solution

The fourth proportional to 291,341.27, 402,058.47 and 164,021.42 is: 226,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,341.27 : 402,058.47 = 164,021.42 : x
  2. Step 2: Convert to fraction form
    291,341.27/402,058.47 = 164,021.42/x
  3. Step 3: Cross multiply
    291,341.27x = 402,058.47 × 164,021.42
  4. Step 4: Simplify right side
    291,341.27x = 65,946,199,162.14
  5. Step 5: Solve for x
    x = 65,946,199,162.14/291,341.27
  6. Step 6: Final answer
    x = 226,353.79

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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.