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Finding the Fourth Proportional to 251,468.33, 347,019.38 and 138,291.08

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Solution

The fourth proportional to 251,468.33, 347,019.38 and 138,291.08 is: 190,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,468.33 : 347,019.38 = 138,291.08 : x
  2. Step 2: Convert to fraction form
    251,468.33/347,019.38 = 138,291.08/x
  3. Step 3: Cross multiply
    251,468.33x = 347,019.38 × 138,291.08
  4. Step 4: Simplify right side
    251,468.33x = 47,989,685,017.22
  5. Step 5: Solve for x
    x = 47,989,685,017.22/251,468.33
  6. Step 6: Final answer
    x = 190,837.89

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1.5x scale

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.