Home / 221,623.80-331,967.70-146,779.80

Finding the Fourth Proportional to 221,623.80, 331,967.70 and 146,779.80

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Solution

The fourth proportional to 221,623.80, 331,967.70 and 146,779.80 is: 219,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,623.80 : 331,967.70 = 146,779.80 : x
  2. Step 2: Convert to fraction form
    221,623.80/331,967.70 = 146,779.80/x
  3. Step 3: Cross multiply
    221,623.80x = 331,967.70 × 146,779.80
  4. Step 4: Simplify right side
    221,623.80x = 48,726,152,612.46
  5. Step 5: Solve for x
    x = 48,726,152,612.46/221,623.80
  6. Step 6: Final answer
    x = 219,859.75

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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.