Home / 217,825.40-326,747.70-123,054.20

Finding the Fourth Proportional to 217,825.40, 326,747.70 and 123,054.20

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Solution

The fourth proportional to 217,825.40, 326,747.70 and 123,054.20 is: 184,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,825.40 : 326,747.70 = 123,054.20 : x
  2. Step 2: Convert to fraction form
    217,825.40/326,747.70 = 123,054.20/x
  3. Step 3: Cross multiply
    217,825.40x = 326,747.70 × 123,054.20
  4. Step 4: Simplify right side
    217,825.40x = 40,207,676,825.34
  5. Step 5: Solve for x
    x = 40,207,676,825.34/217,825.40
  6. Step 6: Final answer
    x = 184,586.72

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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.