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Finding the Fourth Proportional to 246,499.94, 340,140.66 and 139,063.70

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Solution

The fourth proportional to 246,499.94, 340,140.66 and 139,063.70 is: 191,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,499.94 : 340,140.66 = 139,063.70 : x
  2. Step 2: Convert to fraction form
    246,499.94/340,140.66 = 139,063.70/x
  3. Step 3: Cross multiply
    246,499.94x = 340,140.66 × 139,063.70
  4. Step 4: Simplify right side
    246,499.94x = 47,301,218,700.04
  5. Step 5: Solve for x
    x = 47,301,218,700.04/246,499.94
  6. Step 6: Final answer
    x = 191,891.40

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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.