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Finding the Fourth Proportional to 508,750.61, 763,118.01 and 172,027.80

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Solution

The fourth proportional to 508,750.61, 763,118.01 and 172,027.80 is: 258,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,750.61 : 763,118.01 = 172,027.80 : x
  2. Step 2: Convert to fraction form
    508,750.61/763,118.01 = 172,027.80/x
  3. Step 3: Cross multiply
    508,750.61x = 763,118.01 × 172,027.80
  4. Step 4: Simplify right side
    508,750.61x = 131,277,512,400.68
  5. Step 5: Solve for x
    x = 131,277,512,400.68/508,750.61
  6. Step 6: Final answer
    x = 258,039.03

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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.