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Finding the Fourth Proportional to 530.25, 795.55 and 205.62

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Solution

The fourth proportional to 530.25, 795.55 and 205.62 is: 308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.25 : 795.55 = 205.62 : x
  2. Step 2: Convert to fraction form
    530.25/795.55 = 205.62/x
  3. Step 3: Cross multiply
    530.25x = 795.55 × 205.62
  4. Step 4: Simplify right side
    530.25x = 163,580.99
  5. Step 5: Solve for x
    x = 163,580.99/530.25
  6. Step 6: Final answer
    x = 308.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 531.25, 797.05 and 206.62
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.