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Finding the Fourth Proportional to 340,777.59, 470,253.88 and 187,815.31

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Solution

The fourth proportional to 340,777.59, 470,253.88 and 187,815.31 is: 259,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,777.59 : 470,253.88 = 187,815.31 : x
  2. Step 2: Convert to fraction form
    340,777.59/470,253.88 = 187,815.31/x
  3. Step 3: Cross multiply
    340,777.59x = 470,253.88 × 187,815.31
  4. Step 4: Simplify right side
    340,777.59x = 88,320,877,310.04
  5. Step 5: Solve for x
    x = 88,320,877,310.04/340,777.59
  6. Step 6: Final answer
    x = 259,174.55

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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.