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Finding the Fourth Proportional to 340,525.62, 469,946.58 and 187,563.78

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Solution

The fourth proportional to 340,525.62, 469,946.58 and 187,563.78 is: 258,849.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,525.62 : 469,946.58 = 187,563.78 : x
  2. Step 2: Convert to fraction form
    340,525.62/469,946.58 = 187,563.78/x
  3. Step 3: Cross multiply
    340,525.62x = 469,946.58 × 187,563.78
  4. Step 4: Simplify right side
    340,525.62x = 88,144,956,942.87
  5. Step 5: Solve for x
    x = 88,144,956,942.87/340,525.62
  6. Step 6: Final answer
    x = 258,849.71

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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.