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Finding the Fourth Proportional to 654.29, 981.44 and 259.01

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Solution

The fourth proportional to 654.29, 981.44 and 259.01 is: 388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.29 : 981.44 = 259.01 : x
  2. Step 2: Convert to fraction form
    654.29/981.44 = 259.01/x
  3. Step 3: Cross multiply
    654.29x = 981.44 × 259.01
  4. Step 4: Simplify right side
    654.29x = 254,202.77
  5. Step 5: Solve for x
    x = 254,202.77/654.29
  6. Step 6: Final answer
    x = 388.52

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.