Home / 384,815.50-531,035.49-215,051.02

Finding the Fourth Proportional to 384,815.50, 531,035.49 and 215,051.02

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Solution

The fourth proportional to 384,815.50, 531,035.49 and 215,051.02 is: 296,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,815.50 : 531,035.49 = 215,051.02 : x
  2. Step 2: Convert to fraction form
    384,815.50/531,035.49 = 215,051.02/x
  3. Step 3: Cross multiply
    384,815.50x = 531,035.49 × 215,051.02
  4. Step 4: Simplify right side
    384,815.50x = 114,199,723,780.70
  5. Step 5: Solve for x
    x = 114,199,723,780.70/384,815.50
  6. Step 6: Final answer
    x = 296,764.88

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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.