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Finding the Fourth Proportional to 370.58, 510.54 and 259.85

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Solution

The fourth proportional to 370.58, 510.54 and 259.85 is: 357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.58 : 510.54 = 259.85 : x
  2. Step 2: Convert to fraction form
    370.58/510.54 = 259.85/x
  3. Step 3: Cross multiply
    370.58x = 510.54 × 259.85
  4. Step 4: Simplify right side
    370.58x = 132,663.82
  5. Step 5: Solve for x
    x = 132,663.82/370.58
  6. Step 6: Final answer
    x = 357.99

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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.