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Finding the Fourth Proportional to 539.19, 743.67 and 373.68

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Solution

The fourth proportional to 539.19, 743.67 and 373.68 is: 515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.19 : 743.67 = 373.68 : x
  2. Step 2: Convert to fraction form
    539.19/743.67 = 373.68/x
  3. Step 3: Cross multiply
    539.19x = 743.67 × 373.68
  4. Step 4: Simplify right side
    539.19x = 277,894.61
  5. Step 5: Solve for x
    x = 277,894.61/539.19
  6. Step 6: Final answer
    x = 515.39

Related Problems

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.