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Finding the Fourth Proportional to 210.90, 290.64 and 184.50

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Solution

The fourth proportional to 210.90, 290.64 and 184.50 is: 254.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.90 : 290.64 = 184.50 : x
  2. Step 2: Convert to fraction form
    210.90/290.64 = 184.50/x
  3. Step 3: Cross multiply
    210.90x = 290.64 × 184.50
  4. Step 4: Simplify right side
    210.90x = 53,623.08
  5. Step 5: Solve for x
    x = 53,623.08/210.90
  6. Step 6: Final answer
    x = 254.26

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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.