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Finding the Fourth Proportional to 153.04, 210.92 and 114.24

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Solution

The fourth proportional to 153.04, 210.92 and 114.24 is: 157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.04 : 210.92 = 114.24 : x
  2. Step 2: Convert to fraction form
    153.04/210.92 = 114.24/x
  3. Step 3: Cross multiply
    153.04x = 210.92 × 114.24
  4. Step 4: Simplify right side
    153.04x = 24,095.50
  5. Step 5: Solve for x
    x = 24,095.50/153.04
  6. Step 6: Final answer
    x = 157.45

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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.