Home / 217,580.46-326,386.50-91,093.50

Finding the Fourth Proportional to 217,580.46, 326,386.50 and 91,093.50

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Solution

The fourth proportional to 217,580.46, 326,386.50 and 91,093.50 is: 136,646.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,580.46 : 326,386.50 = 91,093.50 : x
  2. Step 2: Convert to fraction form
    217,580.46/326,386.50 = 91,093.50/x
  3. Step 3: Cross multiply
    217,580.46x = 326,386.50 × 91,093.50
  4. Step 4: Simplify right side
    217,580.46x = 29,731,688,637.75
  5. Step 5: Solve for x
    x = 29,731,688,637.75/217,580.46
  6. Step 6: Final answer
    x = 136,646.87

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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.