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Finding the Fourth Proportional to 612.95, 919.47 and 202.22

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Solution

The fourth proportional to 612.95, 919.47 and 202.22 is: 303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.95 : 919.47 = 202.22 : x
  2. Step 2: Convert to fraction form
    612.95/919.47 = 202.22/x
  3. Step 3: Cross multiply
    612.95x = 919.47 × 202.22
  4. Step 4: Simplify right side
    612.95x = 185,935.22
  5. Step 5: Solve for x
    x = 185,935.22/612.95
  6. Step 6: Final answer
    x = 303.34

Related Problems

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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.