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Finding the Fourth Proportional to 313,656.80, 432,832.28 and 177,687.98

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Solution

The fourth proportional to 313,656.80, 432,832.28 and 177,687.98 is: 245,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,656.80 : 432,832.28 = 177,687.98 : x
  2. Step 2: Convert to fraction form
    313,656.80/432,832.28 = 177,687.98/x
  3. Step 3: Cross multiply
    313,656.80x = 432,832.28 × 177,687.98
  4. Step 4: Simplify right side
    313,656.80x = 76,909,093,511.99
  5. Step 5: Solve for x
    x = 76,909,093,511.99/313,656.80
  6. Step 6: Final answer
    x = 245,201.42

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1.5x scale

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.