Home / 384,847.58-531,090.43-215,081.70

Finding the Fourth Proportional to 384,847.58, 531,090.43 and 215,081.70

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Solution

The fourth proportional to 384,847.58, 531,090.43 and 215,081.70 is: 296,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,847.58 : 531,090.43 = 215,081.70 : x
  2. Step 2: Convert to fraction form
    384,847.58/531,090.43 = 215,081.70/x
  3. Step 3: Cross multiply
    384,847.58x = 531,090.43 × 215,081.70
  4. Step 4: Simplify right side
    384,847.58x = 114,227,832,538.13
  5. Step 5: Solve for x
    x = 114,227,832,538.13/384,847.58
  6. Step 6: Final answer
    x = 296,813.18

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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.