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Finding the Fourth Proportional to 342,341.82, 472,272.53 and 221,522.11

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Solution

The fourth proportional to 342,341.82, 472,272.53 and 221,522.11 is: 305,597.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,341.82 : 472,272.53 = 221,522.11 : x
  2. Step 2: Convert to fraction form
    342,341.82/472,272.53 = 221,522.11/x
  3. Step 3: Cross multiply
    342,341.82x = 472,272.53 × 221,522.11
  4. Step 4: Simplify right side
    342,341.82x = 104,618,805,052.35
  5. Step 5: Solve for x
    x = 104,618,805,052.35/342,341.82
  6. Step 6: Final answer
    x = 305,597.50

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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.