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Finding the Fourth Proportional to 561.51, 845.47 and 496.92

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Solution

The fourth proportional to 561.51, 845.47 and 496.92 is: 748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.51 : 845.47 = 496.92 : x
  2. Step 2: Convert to fraction form
    561.51/845.47 = 496.92/x
  3. Step 3: Cross multiply
    561.51x = 845.47 × 496.92
  4. Step 4: Simplify right side
    561.51x = 420,130.95
  5. Step 5: Solve for x
    x = 420,130.95/561.51
  6. Step 6: Final answer
    x = 748.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.