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Finding the Fourth Proportional to 530.49, 795.73 and 286.96

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Solution

The fourth proportional to 530.49, 795.73 and 286.96 is: 430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.49 : 795.73 = 286.96 : x
  2. Step 2: Convert to fraction form
    530.49/795.73 = 286.96/x
  3. Step 3: Cross multiply
    530.49x = 795.73 × 286.96
  4. Step 4: Simplify right side
    530.49x = 228,339.97
  5. Step 5: Solve for x
    x = 228,339.97/530.49
  6. Step 6: Final answer
    x = 430.43

Related Problems

Find fourth proportional to 265.25, 397.86 and 143.48
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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.