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Finding the Fourth Proportional to 143,590.83, 215,369.84 and 38,418.00

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Solution

The fourth proportional to 143,590.83, 215,369.84 and 38,418.00 is: 57,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,590.83 : 215,369.84 = 38,418.00 : x
  2. Step 2: Convert to fraction form
    143,590.83/215,369.84 = 38,418.00/x
  3. Step 3: Cross multiply
    143,590.83x = 215,369.84 × 38,418.00
  4. Step 4: Simplify right side
    143,590.83x = 8,274,077,585.43
  5. Step 5: Solve for x
    x = 8,274,077,585.43/143,590.83
  6. Step 6: Final answer
    x = 57,622.61

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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.