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Finding the Fourth Proportional to 501,875.36, 753,008.88 and 221,194.88

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Solution

The fourth proportional to 501,875.36, 753,008.88 and 221,194.88 is: 331,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,875.36 : 753,008.88 = 221,194.88 : x
  2. Step 2: Convert to fraction form
    501,875.36/753,008.88 = 221,194.88/x
  3. Step 3: Cross multiply
    501,875.36x = 753,008.88 × 221,194.88
  4. Step 4: Simplify right side
    501,875.36x = 166,561,708,850.53
  5. Step 5: Solve for x
    x = 166,561,708,850.53/501,875.36
  6. Step 6: Final answer
    x = 331,878.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.