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Finding the Fourth Proportional to 554.94, 832.40 and 189.68

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Solution

The fourth proportional to 554.94, 832.40 and 189.68 is: 284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.94 : 832.40 = 189.68 : x
  2. Step 2: Convert to fraction form
    554.94/832.40 = 189.68/x
  3. Step 3: Cross multiply
    554.94x = 832.40 × 189.68
  4. Step 4: Simplify right side
    554.94x = 157,889.63
  5. Step 5: Solve for x
    x = 157,889.63/554.94
  6. Step 6: Final answer
    x = 284.52

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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.