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Finding the Fourth Proportional to 369,511.88, 554,278.14 and 120,193.88

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Solution

The fourth proportional to 369,511.88, 554,278.14 and 120,193.88 is: 180,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,511.88 : 554,278.14 = 120,193.88 : x
  2. Step 2: Convert to fraction form
    369,511.88/554,278.14 = 120,193.88/x
  3. Step 3: Cross multiply
    369,511.88x = 554,278.14 × 120,193.88
  4. Step 4: Simplify right side
    369,511.88x = 66,620,837,474.39
  5. Step 5: Solve for x
    x = 66,620,837,474.39/369,511.88
  6. Step 6: Final answer
    x = 180,294.17

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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.