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Finding the Fourth Proportional to 419,750.71, 579,271.61 and 238,493.37

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Solution

The fourth proportional to 419,750.71, 579,271.61 and 238,493.37 is: 329,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,750.71 : 579,271.61 = 238,493.37 : x
  2. Step 2: Convert to fraction form
    419,750.71/579,271.61 = 238,493.37/x
  3. Step 3: Cross multiply
    419,750.71x = 579,271.61 × 238,493.37
  4. Step 4: Simplify right side
    419,750.71x = 138,152,438,414.23
  5. Step 5: Solve for x
    x = 138,152,438,414.23/419,750.71
  6. Step 6: Final answer
    x = 329,129.73

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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.