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Finding the Fourth Proportional to 530.94, 795.35 and 253.57

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Solution

The fourth proportional to 530.94, 795.35 and 253.57 is: 379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.94 : 795.35 = 253.57 : x
  2. Step 2: Convert to fraction form
    530.94/795.35 = 253.57/x
  3. Step 3: Cross multiply
    530.94x = 795.35 × 253.57
  4. Step 4: Simplify right side
    530.94x = 201,675.55
  5. Step 5: Solve for x
    x = 201,675.55/530.94
  6. Step 6: Final answer
    x = 379.84

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Double scale
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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.