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Finding the Fourth Proportional to 632.19, 948.19 and 307.45

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Solution

The fourth proportional to 632.19, 948.19 and 307.45 is: 461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.19 : 948.19 = 307.45 : x
  2. Step 2: Convert to fraction form
    632.19/948.19 = 307.45/x
  3. Step 3: Cross multiply
    632.19x = 948.19 × 307.45
  4. Step 4: Simplify right side
    632.19x = 291,521.02
  5. Step 5: Solve for x
    x = 291,521.02/632.19
  6. Step 6: Final answer
    x = 461.13

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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.