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Finding the Fourth Proportional to 246,980.52, 340,960.32 and 156,431.16

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Solution

The fourth proportional to 246,980.52, 340,960.32 and 156,431.16 is: 215,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,980.52 : 340,960.32 = 156,431.16 : x
  2. Step 2: Convert to fraction form
    246,980.52/340,960.32 = 156,431.16/x
  3. Step 3: Cross multiply
    246,980.52x = 340,960.32 × 156,431.16
  4. Step 4: Simplify right side
    246,980.52x = 53,336,818,371.57
  5. Step 5: Solve for x
    x = 53,336,818,371.57/246,980.52
  6. Step 6: Final answer
    x = 215,955.57

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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.