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Finding the Fourth Proportional to 246,489.89, 340,156.28 and 133,312.64

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Solution

The fourth proportional to 246,489.89, 340,156.28 and 133,312.64 is: 183,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,489.89 : 340,156.28 = 133,312.64 : x
  2. Step 2: Convert to fraction form
    246,489.89/340,156.28 = 133,312.64/x
  3. Step 3: Cross multiply
    246,489.89x = 340,156.28 × 133,312.64
  4. Step 4: Simplify right side
    246,489.89x = 45,347,131,699.38
  5. Step 5: Solve for x
    x = 45,347,131,699.38/246,489.89
  6. Step 6: Final answer
    x = 183,971.57

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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.