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Finding the Fourth Proportional to 246,718.31, 340,477.90 and 149,889.20

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Solution

The fourth proportional to 246,718.31, 340,477.90 and 149,889.20 is: 206,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,718.31 : 340,477.90 = 149,889.20 : x
  2. Step 2: Convert to fraction form
    246,718.31/340,477.90 = 149,889.20/x
  3. Step 3: Cross multiply
    246,718.31x = 340,477.90 × 149,889.20
  4. Step 4: Simplify right side
    246,718.31x = 51,033,957,971.57
  5. Step 5: Solve for x
    x = 51,033,957,971.57/246,718.31
  6. Step 6: Final answer
    x = 206,851.12

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1.5x scale

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.