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Finding the Fourth Proportional to 577.44, 865.44 and 288.96

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Solution

The fourth proportional to 577.44, 865.44 and 288.96 is: 433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.44 : 865.44 = 288.96 : x
  2. Step 2: Convert to fraction form
    577.44/865.44 = 288.96/x
  3. Step 3: Cross multiply
    577.44x = 865.44 × 288.96
  4. Step 4: Simplify right side
    577.44x = 250,077.54
  5. Step 5: Solve for x
    x = 250,077.54/577.44
  6. Step 6: Final answer
    x = 433.08

Related Problems

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Half scale
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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.