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Finding the Fourth Proportional to 251,673.84, 347,301.36 and 138,496.32

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Solution

The fourth proportional to 251,673.84, 347,301.36 and 138,496.32 is: 191,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,673.84 : 347,301.36 = 138,496.32 : x
  2. Step 2: Convert to fraction form
    251,673.84/347,301.36 = 138,496.32/x
  3. Step 3: Cross multiply
    251,673.84x = 347,301.36 × 138,496.32
  4. Step 4: Simplify right side
    251,673.84x = 48,099,960,291.00
  5. Step 5: Solve for x
    x = 48,099,960,291.00/251,673.84
  6. Step 6: Final answer
    x = 191,120.22

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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.