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Finding the Fourth Proportional to 530.51, 795.81 and 222.15

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Solution

The fourth proportional to 530.51, 795.81 and 222.15 is: 333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.51 : 795.81 = 222.15 : x
  2. Step 2: Convert to fraction form
    530.51/795.81 = 222.15/x
  3. Step 3: Cross multiply
    530.51x = 795.81 × 222.15
  4. Step 4: Simplify right side
    530.51x = 176,789.19
  5. Step 5: Solve for x
    x = 176,789.19/530.51
  6. Step 6: Final answer
    x = 333.25

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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.