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Finding the Fourth Proportional to 342,200.14, 472,013.78 and 219,498.28

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Solution

The fourth proportional to 342,200.14, 472,013.78 and 219,498.28 is: 302,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,200.14 : 472,013.78 = 219,498.28 : x
  2. Step 2: Convert to fraction form
    342,200.14/472,013.78 = 219,498.28/x
  3. Step 3: Cross multiply
    342,200.14x = 472,013.78 × 219,498.28
  4. Step 4: Simplify right side
    342,200.14x = 103,606,212,846.30
  5. Step 5: Solve for x
    x = 103,606,212,846.30/342,200.14
  6. Step 6: Final answer
    x = 302,764.96

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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.