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Finding the Fourth Proportional to 173.90, 240.09 and 152.30

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Solution

The fourth proportional to 173.90, 240.09 and 152.30 is: 210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.90 : 240.09 = 152.30 : x
  2. Step 2: Convert to fraction form
    173.90/240.09 = 152.30/x
  3. Step 3: Cross multiply
    173.90x = 240.09 × 152.30
  4. Step 4: Simplify right side
    173.90x = 36,565.71
  5. Step 5: Solve for x
    x = 36,565.71/173.90
  6. Step 6: Final answer
    x = 210.27

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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.