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Finding the Fourth Proportional to 368.76, 548.79 and 356.76

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Solution

The fourth proportional to 368.76, 548.79 and 356.76 is: 530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.76 : 548.79 = 356.76 : x
  2. Step 2: Convert to fraction form
    368.76/548.79 = 356.76/x
  3. Step 3: Cross multiply
    368.76x = 548.79 × 356.76
  4. Step 4: Simplify right side
    368.76x = 195,786.32
  5. Step 5: Solve for x
    x = 195,786.32/368.76
  6. Step 6: Final answer
    x = 530.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.