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Finding the Fourth Proportional to 303,193.12, 418,521.36 and 238,494.88

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Solution

The fourth proportional to 303,193.12, 418,521.36 and 238,494.88 is: 329,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,193.12 : 418,521.36 = 238,494.88 : x
  2. Step 2: Convert to fraction form
    303,193.12/418,521.36 = 238,494.88/x
  3. Step 3: Cross multiply
    303,193.12x = 418,521.36 × 238,494.88
  4. Step 4: Simplify right side
    303,193.12x = 99,815,201,530.64
  5. Step 5: Solve for x
    x = 99,815,201,530.64/303,193.12
  6. Step 6: Final answer
    x = 329,213.28

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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.