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Finding the Fourth Proportional to 617.16, 928.50 and 373.86

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Solution

The fourth proportional to 617.16, 928.50 and 373.86 is: 562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.16 : 928.50 = 373.86 : x
  2. Step 2: Convert to fraction form
    617.16/928.50 = 373.86/x
  3. Step 3: Cross multiply
    617.16x = 928.50 × 373.86
  4. Step 4: Simplify right side
    617.16x = 347,129.01
  5. Step 5: Solve for x
    x = 347,129.01/617.16
  6. Step 6: Final answer
    x = 562.46

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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.