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Finding the Fourth Proportional to 553,266.60, 829,997.10 and 198,486.60

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Solution

The fourth proportional to 553,266.60, 829,997.10 and 198,486.60 is: 297,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,266.60 : 829,997.10 = 198,486.60 : x
  2. Step 2: Convert to fraction form
    553,266.60/829,997.10 = 198,486.60/x
  3. Step 3: Cross multiply
    553,266.60x = 829,997.10 × 198,486.60
  4. Step 4: Simplify right side
    553,266.60x = 164,743,302,388.86
  5. Step 5: Solve for x
    x = 164,743,302,388.86/553,266.60
  6. Step 6: Final answer
    x = 297,764.77

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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.