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Finding the Fourth Proportional to 251,975.54, 347,726.27 and 138,798.29

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Solution

The fourth proportional to 251,975.54, 347,726.27 and 138,798.29 is: 191,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,975.54 : 347,726.27 = 138,798.29 : x
  2. Step 2: Convert to fraction form
    251,975.54/347,726.27 = 138,798.29/x
  3. Step 3: Cross multiply
    251,975.54x = 347,726.27 × 138,798.29
  4. Step 4: Simplify right side
    251,975.54x = 48,263,811,664.08
  5. Step 5: Solve for x
    x = 48,263,811,664.08/251,975.54
  6. Step 6: Final answer
    x = 191,541.65

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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.