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Finding the Fourth Proportional to 347,007.90, 520,511.85 and 169,628.70

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Solution

The fourth proportional to 347,007.90, 520,511.85 and 169,628.70 is: 254,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,007.90 : 520,511.85 = 169,628.70 : x
  2. Step 2: Convert to fraction form
    347,007.90/520,511.85 = 169,628.70/x
  3. Step 3: Cross multiply
    347,007.90x = 520,511.85 × 169,628.70
  4. Step 4: Simplify right side
    347,007.90x = 88,293,748,450.10
  5. Step 5: Solve for x
    x = 88,293,748,450.10/347,007.90
  6. Step 6: Final answer
    x = 254,443.05

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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.