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Finding the Fourth Proportional to 251,975.33, 347,725.98 and 138,798.08

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Solution

The fourth proportional to 251,975.33, 347,725.98 and 138,798.08 is: 191,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,975.33 : 347,725.98 = 138,798.08 : x
  2. Step 2: Convert to fraction form
    251,975.33/347,725.98 = 138,798.08/x
  3. Step 3: Cross multiply
    251,975.33x = 347,725.98 × 138,798.08
  4. Step 4: Simplify right side
    251,975.33x = 48,263,698,390.12
  5. Step 5: Solve for x
    x = 48,263,698,390.12/251,975.33
  6. Step 6: Final answer
    x = 191,541.36

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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.