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Finding the Fourth Proportional to 340,523.62, 469,943.82 and 187,561.78

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Solution

The fourth proportional to 340,523.62, 469,943.82 and 187,561.78 is: 258,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,523.62 : 469,943.82 = 187,561.78 : x
  2. Step 2: Convert to fraction form
    340,523.62/469,943.82 = 187,561.78/x
  3. Step 3: Cross multiply
    340,523.62x = 469,943.82 × 187,561.78
  4. Step 4: Simplify right side
    340,523.62x = 88,143,499,379.20
  5. Step 5: Solve for x
    x = 88,143,499,379.20/340,523.62
  6. Step 6: Final answer
    x = 258,846.95

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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.