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Finding the Fourth Proportional to 177,615.12, 266,415.36 and 98,679

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Solution

The fourth proportional to 177,615.12, 266,415.36 and 98,679 is: 148,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,615.12 : 266,415.36 = 98,679 : x
  2. Step 2: Convert to fraction form
    177,615.12/266,415.36 = 98,679/x
  3. Step 3: Cross multiply
    177,615.12x = 266,415.36 × 98,679
  4. Step 4: Simplify right side
    177,615.12x = 26,289,601,309.44
  5. Step 5: Solve for x
    x = 26,289,601,309.44/177,615.12
  6. Step 6: Final answer
    x = 148,014.43

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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.