Home / 384,840.82-531,096.74-215,074.94

Finding the Fourth Proportional to 384,840.82, 531,096.74 and 215,074.94

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Solution

The fourth proportional to 384,840.82, 531,096.74 and 215,074.94 is: 296,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,840.82 : 531,096.74 = 215,074.94 : x
  2. Step 2: Convert to fraction form
    384,840.82/531,096.74 = 215,074.94/x
  3. Step 3: Cross multiply
    384,840.82x = 531,096.74 × 215,074.94
  4. Step 4: Simplify right side
    384,840.82x = 114,225,599,489.70
  5. Step 5: Solve for x
    x = 114,225,599,489.70/384,840.82
  6. Step 6: Final answer
    x = 296,812.59

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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.