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Finding the Fourth Proportional to 245,330.88, 368,035.20 and 79,080

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Solution

The fourth proportional to 245,330.88, 368,035.20 and 79,080 is: 118,632.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,330.88 : 368,035.20 = 79,080 : x
  2. Step 2: Convert to fraction form
    245,330.88/368,035.20 = 79,080/x
  3. Step 3: Cross multiply
    245,330.88x = 368,035.20 × 79,080
  4. Step 4: Simplify right side
    245,330.88x = 29,104,223,616
  5. Step 5: Solve for x
    x = 29,104,223,616/245,330.88
  6. Step 6: Final answer
    x = 118,632.53

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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.