Home / 272,564.37-408,908.08-90,194.71

Finding the Fourth Proportional to 272,564.37, 408,908.08 and 90,194.71

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Solution

The fourth proportional to 272,564.37, 408,908.08 and 90,194.71 is: 135,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,564.37 : 408,908.08 = 90,194.71 : x
  2. Step 2: Convert to fraction form
    272,564.37/408,908.08 = 90,194.71/x
  3. Step 3: Cross multiply
    272,564.37x = 408,908.08 × 90,194.71
  4. Step 4: Simplify right side
    272,564.37x = 36,881,346,187.88
  5. Step 5: Solve for x
    x = 36,881,346,187.88/272,564.37
  6. Step 6: Final answer
    x = 135,312.42

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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.