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Finding the Fourth Proportional to 475.93, 712.80 and 283.15

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Solution

The fourth proportional to 475.93, 712.80 and 283.15 is: 424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.93 : 712.80 = 283.15 : x
  2. Step 2: Convert to fraction form
    475.93/712.80 = 283.15/x
  3. Step 3: Cross multiply
    475.93x = 712.80 × 283.15
  4. Step 4: Simplify right side
    475.93x = 201,829.32
  5. Step 5: Solve for x
    x = 201,829.32/475.93
  6. Step 6: Final answer
    x = 424.07

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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.