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Finding the Fourth Proportional to 374.73, 559.86 and 357.72

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Solution

The fourth proportional to 374.73, 559.86 and 357.72 is: 534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.73 : 559.86 = 357.72 : x
  2. Step 2: Convert to fraction form
    374.73/559.86 = 357.72/x
  3. Step 3: Cross multiply
    374.73x = 559.86 × 357.72
  4. Step 4: Simplify right side
    374.73x = 200,271.69
  5. Step 5: Solve for x
    x = 200,271.69/374.73
  6. Step 6: Final answer
    x = 534.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.