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Finding the Fourth Proportional to 345.04, 515.38 and 293.36

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Solution

The fourth proportional to 345.04, 515.38 and 293.36 is: 438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.04 : 515.38 = 293.36 : x
  2. Step 2: Convert to fraction form
    345.04/515.38 = 293.36/x
  3. Step 3: Cross multiply
    345.04x = 515.38 × 293.36
  4. Step 4: Simplify right side
    345.04x = 151,191.88
  5. Step 5: Solve for x
    x = 151,191.88/345.04
  6. Step 6: Final answer
    x = 438.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.