Home / 384,781.11-530,996.63-215,015.24

Finding the Fourth Proportional to 384,781.11, 530,996.63 and 215,015.24

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Solution

The fourth proportional to 384,781.11, 530,996.63 and 215,015.24 is: 296,720.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,781.11 : 530,996.63 = 215,015.24 : x
  2. Step 2: Convert to fraction form
    384,781.11/530,996.63 = 215,015.24/x
  3. Step 3: Cross multiply
    384,781.11x = 530,996.63 × 215,015.24
  4. Step 4: Simplify right side
    384,781.11x = 114,172,364,108.58
  5. Step 5: Solve for x
    x = 114,172,364,108.58/384,781.11
  6. Step 6: Final answer
    x = 296,720.29

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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.