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Finding the Fourth Proportional to 347.60, 521.41 and 245.35

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Solution

The fourth proportional to 347.60, 521.41 and 245.35 is: 368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.60 : 521.41 = 245.35 : x
  2. Step 2: Convert to fraction form
    347.60/521.41 = 245.35/x
  3. Step 3: Cross multiply
    347.60x = 521.41 × 245.35
  4. Step 4: Simplify right side
    347.60x = 127,927.94
  5. Step 5: Solve for x
    x = 127,927.94/347.60
  6. Step 6: Final answer
    x = 368.03

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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.