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Finding the Fourth Proportional to 368.08, 507.96 and 210.74

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Solution

The fourth proportional to 368.08, 507.96 and 210.74 is: 290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.08 : 507.96 = 210.74 : x
  2. Step 2: Convert to fraction form
    368.08/507.96 = 210.74/x
  3. Step 3: Cross multiply
    368.08x = 507.96 × 210.74
  4. Step 4: Simplify right side
    368.08x = 107,044.95
  5. Step 5: Solve for x
    x = 107,044.95/368.08
  6. Step 6: Final answer
    x = 290.82

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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.