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Finding the Fourth Proportional to 356,238, 534,590.28 and 134,622

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Solution

The fourth proportional to 356,238, 534,590.28 and 134,622 is: 202,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,238 : 534,590.28 = 134,622 : x
  2. Step 2: Convert to fraction form
    356,238/534,590.28 = 134,622/x
  3. Step 3: Cross multiply
    356,238x = 534,590.28 × 134,622
  4. Step 4: Simplify right side
    356,238x = 71,967,612,674.16
  5. Step 5: Solve for x
    x = 71,967,612,674.16/356,238
  6. Step 6: Final answer
    x = 202,021.16

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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.