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Finding the Fourth Proportional to 370,564.56, 555,846.84 and 90,081

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Solution

The fourth proportional to 370,564.56, 555,846.84 and 90,081 is: 135,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,564.56 : 555,846.84 = 90,081 : x
  2. Step 2: Convert to fraction form
    370,564.56/555,846.84 = 90,081/x
  3. Step 3: Cross multiply
    370,564.56x = 555,846.84 × 90,081
  4. Step 4: Simplify right side
    370,564.56x = 50,071,239,194.04
  5. Step 5: Solve for x
    x = 50,071,239,194.04/370,564.56
  6. Step 6: Final answer
    x = 135,121.50

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1.5x scale

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.