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Finding the Fourth Proportional to 707.39, 1,060.71 and 245.14

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Solution

The fourth proportional to 707.39, 1,060.71 and 245.14 is: 367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.39 : 1,060.71 = 245.14 : x
  2. Step 2: Convert to fraction form
    707.39/1,060.71 = 245.14/x
  3. Step 3: Cross multiply
    707.39x = 1,060.71 × 245.14
  4. Step 4: Simplify right side
    707.39x = 260,018.88
  5. Step 5: Solve for x
    x = 260,018.88/707.39
  6. Step 6: Final answer
    x = 367.57

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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.