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Finding the Fourth Proportional to 458.53, 632.93 and 283.93

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Solution

The fourth proportional to 458.53, 632.93 and 283.93 is: 391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.53 : 632.93 = 283.93 : x
  2. Step 2: Convert to fraction form
    458.53/632.93 = 283.93/x
  3. Step 3: Cross multiply
    458.53x = 632.93 × 283.93
  4. Step 4: Simplify right side
    458.53x = 179,706.40
  5. Step 5: Solve for x
    x = 179,706.40/458.53
  6. Step 6: Final answer
    x = 391.92

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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.