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Finding the Fourth Proportional to 590.40, 885.70 and 179.49

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Solution

The fourth proportional to 590.40, 885.70 and 179.49 is: 269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.40 : 885.70 = 179.49 : x
  2. Step 2: Convert to fraction form
    590.40/885.70 = 179.49/x
  3. Step 3: Cross multiply
    590.40x = 885.70 × 179.49
  4. Step 4: Simplify right side
    590.40x = 158,973.84
  5. Step 5: Solve for x
    x = 158,973.84/590.40
  6. Step 6: Final answer
    x = 269.26

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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.