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Finding the Fourth Proportional to 303,506.64, 418,765.64 and 194,561.20

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Solution

The fourth proportional to 303,506.64, 418,765.64 and 194,561.20 is: 268,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,506.64 : 418,765.64 = 194,561.20 : x
  2. Step 2: Convert to fraction form
    303,506.64/418,765.64 = 194,561.20/x
  3. Step 3: Cross multiply
    303,506.64x = 418,765.64 × 194,561.20
  4. Step 4: Simplify right side
    303,506.64x = 81,475,545,437.17
  5. Step 5: Solve for x
    x = 81,475,545,437.17/303,506.64
  6. Step 6: Final answer
    x = 268,447.32

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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.