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Finding the Fourth Proportional to 472.18, 650.19 and 373.90

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Solution

The fourth proportional to 472.18, 650.19 and 373.90 is: 514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.18 : 650.19 = 373.90 : x
  2. Step 2: Convert to fraction form
    472.18/650.19 = 373.90/x
  3. Step 3: Cross multiply
    472.18x = 650.19 × 373.90
  4. Step 4: Simplify right side
    472.18x = 243,106.04
  5. Step 5: Solve for x
    x = 243,106.04/472.18
  6. Step 6: Final answer
    x = 514.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.