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Finding the Fourth Proportional to 246,641.72, 340,366.74 and 139,216.28

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Solution

The fourth proportional to 246,641.72, 340,366.74 and 139,216.28 is: 192,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,641.72 : 340,366.74 = 139,216.28 : x
  2. Step 2: Convert to fraction form
    246,641.72/340,366.74 = 139,216.28/x
  3. Step 3: Cross multiply
    246,641.72x = 340,366.74 × 139,216.28
  4. Step 4: Simplify right side
    246,641.72x = 47,384,591,378.53
  5. Step 5: Solve for x
    x = 47,384,591,378.53/246,641.72
  6. Step 6: Final answer
    x = 192,119.12

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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.