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Finding the Fourth Proportional to 246,898.64, 340,719.05 and 138,002.82

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Solution

The fourth proportional to 246,898.64, 340,719.05 and 138,002.82 is: 190,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,898.64 : 340,719.05 = 138,002.82 : x
  2. Step 2: Convert to fraction form
    246,898.64/340,719.05 = 138,002.82/x
  3. Step 3: Cross multiply
    246,898.64x = 340,719.05 × 138,002.82
  4. Step 4: Simplify right side
    246,898.64x = 47,020,189,037.71
  5. Step 5: Solve for x
    x = 47,020,189,037.71/246,898.64
  6. Step 6: Final answer
    x = 190,443.29

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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.