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Finding the Fourth Proportional to 370,010.80, 555,016.20 and 103,816.45

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Solution

The fourth proportional to 370,010.80, 555,016.20 and 103,816.45 is: 155,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,010.80 : 555,016.20 = 103,816.45 : x
  2. Step 2: Convert to fraction form
    370,010.80/555,016.20 = 103,816.45/x
  3. Step 3: Cross multiply
    370,010.80x = 555,016.20 × 103,816.45
  4. Step 4: Simplify right side
    370,010.80x = 57,619,811,576.49
  5. Step 5: Solve for x
    x = 57,619,811,576.49/370,010.80
  6. Step 6: Final answer
    x = 155,724.68

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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.