Home / 217,826.40-326,749.20-123,055.20

Finding the Fourth Proportional to 217,826.40, 326,749.20 and 123,055.20

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Solution

The fourth proportional to 217,826.40, 326,749.20 and 123,055.20 is: 184,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,826.40 : 326,749.20 = 123,055.20 : x
  2. Step 2: Convert to fraction form
    217,826.40/326,749.20 = 123,055.20/x
  3. Step 3: Cross multiply
    217,826.40x = 326,749.20 × 123,055.20
  4. Step 4: Simplify right side
    217,826.40x = 40,208,188,155.84
  5. Step 5: Solve for x
    x = 40,208,188,155.84/217,826.40
  6. Step 6: Final answer
    x = 184,588.22

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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.