Home / 288,876.48-398,749.73-198,531.51

Finding the Fourth Proportional to 288,876.48, 398,749.73 and 198,531.51

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Solution

The fourth proportional to 288,876.48, 398,749.73 and 198,531.51 is: 274,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,876.48 : 398,749.73 = 198,531.51 : x
  2. Step 2: Convert to fraction form
    288,876.48/398,749.73 = 198,531.51/x
  3. Step 3: Cross multiply
    288,876.48x = 398,749.73 × 198,531.51
  4. Step 4: Simplify right side
    288,876.48x = 79,164,386,008.99
  5. Step 5: Solve for x
    x = 79,164,386,008.99/288,876.48
  6. Step 6: Final answer
    x = 274,042.34

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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.