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Finding the Fourth Proportional to 554.80, 832.14 and 339.70

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Solution

The fourth proportional to 554.80, 832.14 and 339.70 is: 509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.80 : 832.14 = 339.70 : x
  2. Step 2: Convert to fraction form
    554.80/832.14 = 339.70/x
  3. Step 3: Cross multiply
    554.80x = 832.14 × 339.70
  4. Step 4: Simplify right side
    554.80x = 282,677.96
  5. Step 5: Solve for x
    x = 282,677.96/554.80
  6. Step 6: Final answer
    x = 509.51

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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.