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Finding the Fourth Proportional to 331,550.50, 457,539.70 and 180,647.50

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Solution

The fourth proportional to 331,550.50, 457,539.70 and 180,647.50 is: 249,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,550.50 : 457,539.70 = 180,647.50 : x
  2. Step 2: Convert to fraction form
    331,550.50/457,539.70 = 180,647.50/x
  3. Step 3: Cross multiply
    331,550.50x = 457,539.70 × 180,647.50
  4. Step 4: Simplify right side
    331,550.50x = 82,653,402,955.75
  5. Step 5: Solve for x
    x = 82,653,402,955.75/331,550.50
  6. Step 6: Final answer
    x = 249,293.56

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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.