Home / 389,832.69-537,963.30-217,753.05

Finding the Fourth Proportional to 389,832.69, 537,963.30 and 217,753.05

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Solution

The fourth proportional to 389,832.69, 537,963.30 and 217,753.05 is: 300,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,832.69 : 537,963.30 = 217,753.05 : x
  2. Step 2: Convert to fraction form
    389,832.69/537,963.30 = 217,753.05/x
  3. Step 3: Cross multiply
    389,832.69x = 537,963.30 × 217,753.05
  4. Step 4: Simplify right side
    389,832.69x = 117,143,149,363.07
  5. Step 5: Solve for x
    x = 117,143,149,363.07/389,832.69
  6. Step 6: Final answer
    x = 300,495.96

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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.