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Finding the Fourth Proportional to 340,497.91, 469,890.38 and 187,539.57

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Solution

The fourth proportional to 340,497.91, 469,890.38 and 187,539.57 is: 258,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,497.91 : 469,890.38 = 187,539.57 : x
  2. Step 2: Convert to fraction form
    340,497.91/469,890.38 = 187,539.57/x
  3. Step 3: Cross multiply
    340,497.91x = 469,890.38 × 187,539.57
  4. Step 4: Simplify right side
    340,497.91x = 88,123,040,281.19
  5. Step 5: Solve for x
    x = 88,123,040,281.19/340,497.91
  6. Step 6: Final answer
    x = 258,806.40

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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.