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Finding the Fourth Proportional to 235,554.40, 352,525.20 and 142,127.20

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Solution

The fourth proportional to 235,554.40, 352,525.20 and 142,127.20 is: 212,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,554.40 : 352,525.20 = 142,127.20 : x
  2. Step 2: Convert to fraction form
    235,554.40/352,525.20 = 142,127.20/x
  3. Step 3: Cross multiply
    235,554.40x = 352,525.20 × 142,127.20
  4. Step 4: Simplify right side
    235,554.40x = 50,103,419,605.44
  5. Step 5: Solve for x
    x = 50,103,419,605.44/235,554.40
  6. Step 6: Final answer
    x = 212,704.24

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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.