Home / 421,573.96-581,961.84-268,816.90

Finding the Fourth Proportional to 421,573.96, 581,961.84 and 268,816.90

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Solution

The fourth proportional to 421,573.96, 581,961.84 and 268,816.90 is: 371,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,573.96 : 581,961.84 = 268,816.90 : x
  2. Step 2: Convert to fraction form
    421,573.96/581,961.84 = 268,816.90/x
  3. Step 3: Cross multiply
    421,573.96x = 581,961.84 × 268,816.90
  4. Step 4: Simplify right side
    421,573.96x = 156,441,177,747.10
  5. Step 5: Solve for x
    x = 156,441,177,747.10/421,573.96
  6. Step 6: Final answer
    x = 371,088.33

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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.