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Finding the Fourth Proportional to 246,477.81, 340,142.69 and 139,047.51

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Solution

The fourth proportional to 246,477.81, 340,142.69 and 139,047.51 is: 191,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,477.81 : 340,142.69 = 139,047.51 : x
  2. Step 2: Convert to fraction form
    246,477.81/340,142.69 = 139,047.51/x
  3. Step 3: Cross multiply
    246,477.81x = 340,142.69 × 139,047.51
  4. Step 4: Simplify right side
    246,477.81x = 47,295,993,393.96
  5. Step 5: Solve for x
    x = 47,295,993,393.96/246,477.81
  6. Step 6: Final answer
    x = 191,887.43

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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.