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Finding the Fourth Proportional to 358,185.65, 494,366.76 and 205,326.39

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Solution

The fourth proportional to 358,185.65, 494,366.76 and 205,326.39 is: 283,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,185.65 : 494,366.76 = 205,326.39 : x
  2. Step 2: Convert to fraction form
    358,185.65/494,366.76 = 205,326.39/x
  3. Step 3: Cross multiply
    358,185.65x = 494,366.76 × 205,326.39
  4. Step 4: Simplify right side
    358,185.65x = 101,506,544,020.67
  5. Step 5: Solve for x
    x = 101,506,544,020.67/358,185.65
  6. Step 6: Final answer
    x = 283,390.88

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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.