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Finding the Fourth Proportional to 837.24, 1,256.21 and 374.90

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Solution

The fourth proportional to 837.24, 1,256.21 and 374.90 is: 562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.24 : 1,256.21 = 374.90 : x
  2. Step 2: Convert to fraction form
    837.24/1,256.21 = 374.90/x
  3. Step 3: Cross multiply
    837.24x = 1,256.21 × 374.90
  4. Step 4: Simplify right side
    837.24x = 470,951.25
  5. Step 5: Solve for x
    x = 470,951.25/837.24
  6. Step 6: Final answer
    x = 562.50

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1.5x scale

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.