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Finding the Fourth Proportional to 423,030.52, 634,230.20 and 254,511.37

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Solution

The fourth proportional to 423,030.52, 634,230.20 and 254,511.37 is: 381,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,030.52 : 634,230.20 = 254,511.37 : x
  2. Step 2: Convert to fraction form
    423,030.52/634,230.20 = 254,511.37/x
  3. Step 3: Cross multiply
    423,030.52x = 634,230.20 × 254,511.37
  4. Step 4: Simplify right side
    423,030.52x = 161,418,794,958.90
  5. Step 5: Solve for x
    x = 161,418,794,958.90/423,030.52
  6. Step 6: Final answer
    x = 381,577.18

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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.