Home / 369,985.82-510,581.72-200,219.90

Finding the Fourth Proportional to 369,985.82, 510,581.72 and 200,219.90

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Solution

The fourth proportional to 369,985.82, 510,581.72 and 200,219.90 is: 276,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,985.82 : 510,581.72 = 200,219.90 : x
  2. Step 2: Convert to fraction form
    369,985.82/510,581.72 = 200,219.90/x
  3. Step 3: Cross multiply
    369,985.82x = 510,581.72 × 200,219.90
  4. Step 4: Simplify right side
    369,985.82x = 102,228,619,919.13
  5. Step 5: Solve for x
    x = 102,228,619,919.13/369,985.82
  6. Step 6: Final answer
    x = 276,304.16

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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.