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Finding the Fourth Proportional to 342,940.38, 473,257.63 and 189,988.50

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Solution

The fourth proportional to 342,940.38, 473,257.63 and 189,988.50 is: 262,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,940.38 : 473,257.63 = 189,988.50 : x
  2. Step 2: Convert to fraction form
    342,940.38/473,257.63 = 189,988.50/x
  3. Step 3: Cross multiply
    342,940.38x = 473,257.63 × 189,988.50
  4. Step 4: Simplify right side
    342,940.38x = 89,913,509,249.46
  5. Step 5: Solve for x
    x = 89,913,509,249.46/342,940.38
  6. Step 6: Final answer
    x = 262,184.09

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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.