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Finding the Fourth Proportional to 246,570.45, 340,271.79 and 139,142.79

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Solution

The fourth proportional to 246,570.45, 340,271.79 and 139,142.79 is: 192,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,570.45 : 340,271.79 = 139,142.79 : x
  2. Step 2: Convert to fraction form
    246,570.45/340,271.79 = 139,142.79/x
  3. Step 3: Cross multiply
    246,570.45x = 340,271.79 × 139,142.79
  4. Step 4: Simplify right side
    246,570.45x = 47,346,366,218.89
  5. Step 5: Solve for x
    x = 47,346,366,218.89/246,570.45
  6. Step 6: Final answer
    x = 192,019.63

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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.