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Finding the Fourth Proportional to 151,308, 208,805.04 and 84,255.84

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Solution

The fourth proportional to 151,308, 208,805.04 and 84,255.84 is: 116,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,308 : 208,805.04 = 84,255.84 : x
  2. Step 2: Convert to fraction form
    151,308/208,805.04 = 84,255.84/x
  3. Step 3: Cross multiply
    151,308x = 208,805.04 × 84,255.84
  4. Step 4: Simplify right side
    151,308x = 17,593,044,041.43
  5. Step 5: Solve for x
    x = 17,593,044,041.43/151,308
  6. Step 6: Final answer
    x = 116,273.06

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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.