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Finding the Fourth Proportional to 370.58, 510.35 and 347.11

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Solution

The fourth proportional to 370.58, 510.35 and 347.11 is: 478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.58 : 510.35 = 347.11 : x
  2. Step 2: Convert to fraction form
    370.58/510.35 = 347.11/x
  3. Step 3: Cross multiply
    370.58x = 510.35 × 347.11
  4. Step 4: Simplify right side
    370.58x = 177,144.58
  5. Step 5: Solve for x
    x = 177,144.58/370.58
  6. Step 6: Final answer
    x = 478.03

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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.