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Finding the Fourth Proportional to 340,777.35, 470,253.58 and 187,815.09

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Solution

The fourth proportional to 340,777.35, 470,253.58 and 187,815.09 is: 259,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,777.35 : 470,253.58 = 187,815.09 : x
  2. Step 2: Convert to fraction form
    340,777.35/470,253.58 = 187,815.09/x
  3. Step 3: Cross multiply
    340,777.35x = 470,253.58 × 187,815.09
  4. Step 4: Simplify right side
    340,777.35x = 88,320,718,450.52
  5. Step 5: Solve for x
    x = 88,320,718,450.52/340,777.35
  6. Step 6: Final answer
    x = 259,174.26

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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.