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Finding the Fourth Proportional to 310.61, 466.10 and 156.63

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Solution

The fourth proportional to 310.61, 466.10 and 156.63 is: 235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.61 : 466.10 = 156.63 : x
  2. Step 2: Convert to fraction form
    310.61/466.10 = 156.63/x
  3. Step 3: Cross multiply
    310.61x = 466.10 × 156.63
  4. Step 4: Simplify right side
    310.61x = 73,004.46
  5. Step 5: Solve for x
    x = 73,004.46/310.61
  6. Step 6: Final answer
    x = 235.04

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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.