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Finding the Fourth Proportional to 202,370.86, 279,270.21 and 111,726.91

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Solution

The fourth proportional to 202,370.86, 279,270.21 and 111,726.91 is: 154,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,370.86 : 279,270.21 = 111,726.91 : x
  2. Step 2: Convert to fraction form
    202,370.86/279,270.21 = 111,726.91/x
  3. Step 3: Cross multiply
    202,370.86x = 279,270.21 × 111,726.91
  4. Step 4: Simplify right side
    202,370.86x = 31,201,997,618.35
  5. Step 5: Solve for x
    x = 31,201,997,618.35/202,370.86
  6. Step 6: Final answer
    x = 154,182.27

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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.