Home / 400,426.90-552,581.73-219,135.17

Finding the Fourth Proportional to 400,426.90, 552,581.73 and 219,135.17

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Solution

The fourth proportional to 400,426.90, 552,581.73 and 219,135.17 is: 302,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,426.90 : 552,581.73 = 219,135.17 : x
  2. Step 2: Convert to fraction form
    400,426.90/552,581.73 = 219,135.17/x
  3. Step 3: Cross multiply
    400,426.90x = 552,581.73 × 219,135.17
  4. Step 4: Simplify right side
    400,426.90x = 121,090,092,723.90
  5. Step 5: Solve for x
    x = 121,090,092,723.90/400,426.90
  6. Step 6: Final answer
    x = 302,402.49

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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.