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Finding the Fourth Proportional to 488.76, 675.18 and 445.02

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Solution

The fourth proportional to 488.76, 675.18 and 445.02 is: 614.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.76 : 675.18 = 445.02 : x
  2. Step 2: Convert to fraction form
    488.76/675.18 = 445.02/x
  3. Step 3: Cross multiply
    488.76x = 675.18 × 445.02
  4. Step 4: Simplify right side
    488.76x = 300,468.60
  5. Step 5: Solve for x
    x = 300,468.60/488.76
  6. Step 6: Final answer
    x = 614.76

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Find fourth proportional to 244.38, 337.59 and 222.51
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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.