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Finding the Fourth Proportional to 985.02, 1,477.53 and 336.18

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Solution

The fourth proportional to 985.02, 1,477.53 and 336.18 is: 504.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.02 : 1,477.53 = 336.18 : x
  2. Step 2: Convert to fraction form
    985.02/1,477.53 = 336.18/x
  3. Step 3: Cross multiply
    985.02x = 1,477.53 × 336.18
  4. Step 4: Simplify right side
    985.02x = 496,716.04
  5. Step 5: Solve for x
    x = 496,716.04/985.02
  6. Step 6: Final answer
    x = 504.27

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Double scale
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Similar ratio
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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.