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Finding the Fourth Proportional to 331,937.40, 497,312.10 and 201,869.40

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Solution

The fourth proportional to 331,937.40, 497,312.10 and 201,869.40 is: 302,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,937.40 : 497,312.10 = 201,869.40 : x
  2. Step 2: Convert to fraction form
    331,937.40/497,312.10 = 201,869.40/x
  3. Step 3: Cross multiply
    331,937.40x = 497,312.10 × 201,869.40
  4. Step 4: Simplify right side
    331,937.40x = 100,392,095,239.74
  5. Step 5: Solve for x
    x = 100,392,095,239.74/331,937.40
  6. Step 6: Final answer
    x = 302,442.86

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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.