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Finding the Fourth Proportional to 331,898.40, 497,253.60 and 201,830.40

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Solution

The fourth proportional to 331,898.40, 497,253.60 and 201,830.40 is: 302,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,898.40 : 497,253.60 = 201,830.40 : x
  2. Step 2: Convert to fraction form
    331,898.40/497,253.60 = 201,830.40/x
  3. Step 3: Cross multiply
    331,898.40x = 497,253.60 × 201,830.40
  4. Step 4: Simplify right side
    331,898.40x = 100,360,892,989.44
  5. Step 5: Solve for x
    x = 100,360,892,989.44/331,898.40
  6. Step 6: Final answer
    x = 302,384.38

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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.