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Finding the Fourth Proportional to 593.78, 819.36 and 345.11

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Solution

The fourth proportional to 593.78, 819.36 and 345.11 is: 476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.78 : 819.36 = 345.11 : x
  2. Step 2: Convert to fraction form
    593.78/819.36 = 345.11/x
  3. Step 3: Cross multiply
    593.78x = 819.36 × 345.11
  4. Step 4: Simplify right side
    593.78x = 282,769.33
  5. Step 5: Solve for x
    x = 282,769.33/593.78
  6. Step 6: Final answer
    x = 476.22

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.