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Finding the Fourth Proportional to 324,755.73, 487,117.13 and 111,543.21

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Solution

The fourth proportional to 324,755.73, 487,117.13 and 111,543.21 is: 167,309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,755.73 : 487,117.13 = 111,543.21 : x
  2. Step 2: Convert to fraction form
    324,755.73/487,117.13 = 111,543.21/x
  3. Step 3: Cross multiply
    324,755.73x = 487,117.13 × 111,543.21
  4. Step 4: Simplify right side
    324,755.73x = 54,334,607,768.47
  5. Step 5: Solve for x
    x = 54,334,607,768.47/324,755.73
  6. Step 6: Final answer
    x = 167,309.16

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1.5x scale

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.