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Finding the Fourth Proportional to 528,019.97, 792,105.47 and 163,309.70

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Solution

The fourth proportional to 528,019.97, 792,105.47 and 163,309.70 is: 244,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,019.97 : 792,105.47 = 163,309.70 : x
  2. Step 2: Convert to fraction form
    528,019.97/792,105.47 = 163,309.70/x
  3. Step 3: Cross multiply
    528,019.97x = 792,105.47 × 163,309.70
  4. Step 4: Simplify right side
    528,019.97x = 129,358,505,857.51
  5. Step 5: Solve for x
    x = 129,358,505,857.51/528,019.97
  6. Step 6: Final answer
    x = 244,987.90

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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.