Home / 404,502.18-558,209.23-223,215.54

Finding the Fourth Proportional to 404,502.18, 558,209.23 and 223,215.54

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Solution

The fourth proportional to 404,502.18, 558,209.23 and 223,215.54 is: 308,035.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,502.18 : 558,209.23 = 223,215.54 : x
  2. Step 2: Convert to fraction form
    404,502.18/558,209.23 = 223,215.54/x
  3. Step 3: Cross multiply
    404,502.18x = 558,209.23 × 223,215.54
  4. Step 4: Simplify right side
    404,502.18x = 124,600,974,707.43
  5. Step 5: Solve for x
    x = 124,600,974,707.43/404,502.18
  6. Step 6: Final answer
    x = 308,035.36

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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.