Home / 217,587.56-326,312.22-69,809

Finding the Fourth Proportional to 217,587.56, 326,312.22 and 69,809

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Solution

The fourth proportional to 217,587.56, 326,312.22 and 69,809 is: 104,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,587.56 : 326,312.22 = 69,809 : x
  2. Step 2: Convert to fraction form
    217,587.56/326,312.22 = 69,809/x
  3. Step 3: Cross multiply
    217,587.56x = 326,312.22 × 69,809
  4. Step 4: Simplify right side
    217,587.56x = 22,779,529,765.98
  5. Step 5: Solve for x
    x = 22,779,529,765.98/217,587.56
  6. Step 6: Final answer
    x = 104,691.32

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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.