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Finding the Fourth Proportional to 368.04, 508.01 and 257.55

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Solution

The fourth proportional to 368.04, 508.01 and 257.55 is: 355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.04 : 508.01 = 257.55 : x
  2. Step 2: Convert to fraction form
    368.04/508.01 = 257.55/x
  3. Step 3: Cross multiply
    368.04x = 508.01 × 257.55
  4. Step 4: Simplify right side
    368.04x = 130,834.78
  5. Step 5: Solve for x
    x = 130,834.78/368.04
  6. Step 6: Final answer
    x = 355.49

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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.