Home / 221,511.86-332,272.50-79,366.40

Finding the Fourth Proportional to 221,511.86, 332,272.50 and 79,366.40

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Solution

The fourth proportional to 221,511.86, 332,272.50 and 79,366.40 is: 119,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,511.86 : 332,272.50 = 79,366.40 : x
  2. Step 2: Convert to fraction form
    221,511.86/332,272.50 = 79,366.40/x
  3. Step 3: Cross multiply
    221,511.86x = 332,272.50 × 79,366.40
  4. Step 4: Simplify right side
    221,511.86x = 26,371,272,144.00
  5. Step 5: Solve for x
    x = 26,371,272,144.00/221,511.86
  6. Step 6: Final answer
    x = 119,051.29

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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.