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Finding the Fourth Proportional to 530.24, 795.36 and 145.52

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Solution

The fourth proportional to 530.24, 795.36 and 145.52 is: 218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.24 : 795.36 = 145.52 : x
  2. Step 2: Convert to fraction form
    530.24/795.36 = 145.52/x
  3. Step 3: Cross multiply
    530.24x = 795.36 × 145.52
  4. Step 4: Simplify right side
    530.24x = 115,740.79
  5. Step 5: Solve for x
    x = 115,740.79/530.24
  6. Step 6: Final answer
    x = 218.28

Related Problems

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Double scale
Find fourth proportional to 531.24, 796.86 and 146.52
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.