Home / 370,212.45-555,318.69-89,729.70

Finding the Fourth Proportional to 370,212.45, 555,318.69 and 89,729.70

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Solution

The fourth proportional to 370,212.45, 555,318.69 and 89,729.70 is: 134,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,212.45 : 555,318.69 = 89,729.70 : x
  2. Step 2: Convert to fraction form
    370,212.45/555,318.69 = 89,729.70/x
  3. Step 3: Cross multiply
    370,212.45x = 555,318.69 × 89,729.70
  4. Step 4: Simplify right side
    370,212.45x = 49,828,579,458.09
  5. Step 5: Solve for x
    x = 49,828,579,458.09/370,212.45
  6. Step 6: Final answer
    x = 134,594.55

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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.