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Finding the Fourth Proportional to 251,924.92, 347,672.10 and 138,747.64

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Solution

The fourth proportional to 251,924.92, 347,672.10 and 138,747.64 is: 191,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,924.92 : 347,672.10 = 138,747.64 : x
  2. Step 2: Convert to fraction form
    251,924.92/347,672.10 = 138,747.64/x
  3. Step 3: Cross multiply
    251,924.92x = 347,672.10 × 138,747.64
  4. Step 4: Simplify right side
    251,924.92x = 48,238,683,368.84
  5. Step 5: Solve for x
    x = 48,238,683,368.84/251,924.92
  6. Step 6: Final answer
    x = 191,480.40

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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.