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Finding the Fourth Proportional to 456.76, 629.94 and 373.87

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Solution

The fourth proportional to 456.76, 629.94 and 373.87 is: 515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.76 : 629.94 = 373.87 : x
  2. Step 2: Convert to fraction form
    456.76/629.94 = 373.87/x
  3. Step 3: Cross multiply
    456.76x = 629.94 × 373.87
  4. Step 4: Simplify right side
    456.76x = 235,515.67
  5. Step 5: Solve for x
    x = 235,515.67/456.76
  6. Step 6: Final answer
    x = 515.62

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Find fourth proportional to 228.38, 314.97 and 186.94
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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.