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Finding the Fourth Proportional to 561.02, 841.58 and 150.16

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Solution

The fourth proportional to 561.02, 841.58 and 150.16 is: 225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.02 : 841.58 = 150.16 : x
  2. Step 2: Convert to fraction form
    561.02/841.58 = 150.16/x
  3. Step 3: Cross multiply
    561.02x = 841.58 × 150.16
  4. Step 4: Simplify right side
    561.02x = 126,371.65
  5. Step 5: Solve for x
    x = 126,371.65/561.02
  6. Step 6: Final answer
    x = 225.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.