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Finding the Fourth Proportional to 303,420.82, 418,716.88 and 174,357.75

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Solution

The fourth proportional to 303,420.82, 418,716.88 and 174,357.75 is: 240,611.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,420.82 : 418,716.88 = 174,357.75 : x
  2. Step 2: Convert to fraction form
    303,420.82/418,716.88 = 174,357.75/x
  3. Step 3: Cross multiply
    303,420.82x = 418,716.88 × 174,357.75
  4. Step 4: Simplify right side
    303,420.82x = 73,006,533,083.82
  5. Step 5: Solve for x
    x = 73,006,533,083.82/303,420.82
  6. Step 6: Final answer
    x = 240,611.48

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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.