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Finding the Fourth Proportional to 246,489.64, 340,155.93 and 133,312.39

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Solution

The fourth proportional to 246,489.64, 340,155.93 and 133,312.39 is: 183,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,489.64 : 340,155.93 = 133,312.39 : x
  2. Step 2: Convert to fraction form
    246,489.64/340,155.93 = 133,312.39/x
  3. Step 3: Cross multiply
    246,489.64x = 340,155.93 × 133,312.39
  4. Step 4: Simplify right side
    246,489.64x = 45,347,000,000.97
  5. Step 5: Solve for x
    x = 45,347,000,000.97/246,489.64
  6. Step 6: Final answer
    x = 183,971.22

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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.