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Finding the Fourth Proportional to 320,997.78, 442,981.89 and 175,800.89

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Solution

The fourth proportional to 320,997.78, 442,981.89 and 175,800.89 is: 242,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,997.78 : 442,981.89 = 175,800.89 : x
  2. Step 2: Convert to fraction form
    320,997.78/442,981.89 = 175,800.89/x
  3. Step 3: Cross multiply
    320,997.78x = 442,981.89 × 175,800.89
  4. Step 4: Simplify right side
    320,997.78x = 77,876,608,300.97
  5. Step 5: Solve for x
    x = 77,876,608,300.97/320,997.78
  6. Step 6: Final answer
    x = 242,607.93

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1.5x scale

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.