Home / 387,996.10-582,018.72-121,767.13

Finding the Fourth Proportional to 387,996.10, 582,018.72 and 121,767.13

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Solution

The fourth proportional to 387,996.10, 582,018.72 and 121,767.13 is: 182,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,996.10 : 582,018.72 = 121,767.13 : x
  2. Step 2: Convert to fraction form
    387,996.10/582,018.72 = 121,767.13/x
  3. Step 3: Cross multiply
    387,996.10x = 582,018.72 × 121,767.13
  4. Step 4: Simplify right side
    387,996.10x = 70,870,749,140.67
  5. Step 5: Solve for x
    x = 70,870,749,140.67/387,996.10
  6. Step 6: Final answer
    x = 182,658.41

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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.