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Finding the Fourth Proportional to 476.55, 713.75 and 283.77

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Solution

The fourth proportional to 476.55, 713.75 and 283.77 is: 425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.55 : 713.75 = 283.77 : x
  2. Step 2: Convert to fraction form
    476.55/713.75 = 283.77/x
  3. Step 3: Cross multiply
    476.55x = 713.75 × 283.77
  4. Step 4: Simplify right side
    476.55x = 202,539.42
  5. Step 5: Solve for x
    x = 202,539.42/476.55
  6. Step 6: Final answer
    x = 425.01

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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.