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Finding the Fourth Proportional to 238,673, 329,378.26 and 143,144.84

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Solution

The fourth proportional to 238,673, 329,378.26 and 143,144.84 is: 197,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,673 : 329,378.26 = 143,144.84 : x
  2. Step 2: Convert to fraction form
    238,673/329,378.26 = 143,144.84/x
  3. Step 3: Cross multiply
    238,673x = 329,378.26 × 143,144.84
  4. Step 4: Simplify right side
    238,673x = 47,148,798,327.18
  5. Step 5: Solve for x
    x = 47,148,798,327.18/238,673
  6. Step 6: Final answer
    x = 197,545.59

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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.