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Finding the Fourth Proportional to 342,194.49, 472,005.99 and 219,492.72

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Solution

The fourth proportional to 342,194.49, 472,005.99 and 219,492.72 is: 302,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,194.49 : 472,005.99 = 219,492.72 : x
  2. Step 2: Convert to fraction form
    342,194.49/472,005.99 = 219,492.72/x
  3. Step 3: Cross multiply
    342,194.49x = 472,005.99 × 219,492.72
  4. Step 4: Simplify right side
    342,194.49x = 103,601,878,601.39
  5. Step 5: Solve for x
    x = 103,601,878,601.39/342,194.49
  6. Step 6: Final answer
    x = 302,757.30

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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.