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Finding the Fourth Proportional to 347,863.90, 521,492.10 and 134,777.20

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Solution

The fourth proportional to 347,863.90, 521,492.10 and 134,777.20 is: 202,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,863.90 : 521,492.10 = 134,777.20 : x
  2. Step 2: Convert to fraction form
    347,863.90/521,492.10 = 134,777.20/x
  3. Step 3: Cross multiply
    347,863.90x = 521,492.10 × 134,777.20
  4. Step 4: Simplify right side
    347,863.90x = 70,285,245,060.12
  5. Step 5: Solve for x
    x = 70,285,245,060.12/347,863.90
  6. Step 6: Final answer
    x = 202,048.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.