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Finding the Fourth Proportional to 460.67, 690.75 and 152.45

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Solution

The fourth proportional to 460.67, 690.75 and 152.45 is: 228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.67 : 690.75 = 152.45 : x
  2. Step 2: Convert to fraction form
    460.67/690.75 = 152.45/x
  3. Step 3: Cross multiply
    460.67x = 690.75 × 152.45
  4. Step 4: Simplify right side
    460.67x = 105,301.38
  5. Step 5: Solve for x
    x = 105,301.38/460.67
  6. Step 6: Final answer
    x = 228.58

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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.