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Finding the Fourth Proportional to 285,654.11, 428,110.07 and 116,983.13

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Solution

The fourth proportional to 285,654.11, 428,110.07 and 116,983.13 is: 175,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,654.11 : 428,110.07 = 116,983.13 : x
  2. Step 2: Convert to fraction form
    285,654.11/428,110.07 = 116,983.13/x
  3. Step 3: Cross multiply
    285,654.11x = 428,110.07 × 116,983.13
  4. Step 4: Simplify right side
    285,654.11x = 50,081,653,247.65
  5. Step 5: Solve for x
    x = 50,081,653,247.65/285,654.11
  6. Step 6: Final answer
    x = 175,322.72

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1.5x scale

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.