Home / 380,487.56-569,825.42-220,226.02

Finding the Fourth Proportional to 380,487.56, 569,825.42 and 220,226.02

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Solution

The fourth proportional to 380,487.56, 569,825.42 and 220,226.02 is: 329,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,487.56 : 569,825.42 = 220,226.02 : x
  2. Step 2: Convert to fraction form
    380,487.56/569,825.42 = 220,226.02/x
  3. Step 3: Cross multiply
    380,487.56x = 569,825.42 × 220,226.02
  4. Step 4: Simplify right side
    380,487.56x = 125,490,381,815.74
  5. Step 5: Solve for x
    x = 125,490,381,815.74/380,487.56
  6. Step 6: Final answer
    x = 329,814.68

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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.