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Finding the Fourth Proportional to 413,392.08, 620,153.10 and 176,736

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Solution

The fourth proportional to 413,392.08, 620,153.10 and 176,736 is: 265,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,392.08 : 620,153.10 = 176,736 : x
  2. Step 2: Convert to fraction form
    413,392.08/620,153.10 = 176,736/x
  3. Step 3: Cross multiply
    413,392.08x = 620,153.10 × 176,736
  4. Step 4: Simplify right side
    413,392.08x = 109,603,378,281.60
  5. Step 5: Solve for x
    x = 109,603,378,281.60/413,392.08
  6. Step 6: Final answer
    x = 265,131.78

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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.