Home / 387,864.36-582,341.49-198,460.56

Finding the Fourth Proportional to 387,864.36, 582,341.49 and 198,460.56

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Solution

The fourth proportional to 387,864.36, 582,341.49 and 198,460.56 is: 297,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,864.36 : 582,341.49 = 198,460.56 : x
  2. Step 2: Convert to fraction form
    387,864.36/582,341.49 = 198,460.56/x
  3. Step 3: Cross multiply
    387,864.36x = 582,341.49 × 198,460.56
  4. Step 4: Simplify right side
    387,864.36x = 115,571,818,216.63
  5. Step 5: Solve for x
    x = 115,571,818,216.63/387,864.36
  6. Step 6: Final answer
    x = 297,969.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.