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Finding the Fourth Proportional to 310, 465.07 and 117.63

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Solution

The fourth proportional to 310, 465.07 and 117.63 is: 176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310 : 465.07 = 117.63 : x
  2. Step 2: Convert to fraction form
    310/465.07 = 117.63/x
  3. Step 3: Cross multiply
    310x = 465.07 × 117.63
  4. Step 4: Simplify right side
    310x = 54,706.18
  5. Step 5: Solve for x
    x = 54,706.18/310
  6. Step 6: Final answer
    x = 176.47

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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.