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Finding the Fourth Proportional to 217,438.67, 326,204.88 and 65,623.06

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Solution

The fourth proportional to 217,438.67, 326,204.88 and 65,623.06 is: 98,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,438.67 : 326,204.88 = 65,623.06 : x
  2. Step 2: Convert to fraction form
    217,438.67/326,204.88 = 65,623.06/x
  3. Step 3: Cross multiply
    217,438.67x = 326,204.88 × 65,623.06
  4. Step 4: Simplify right side
    217,438.67x = 21,406,562,412.53
  5. Step 5: Solve for x
    x = 21,406,562,412.53/217,438.67
  6. Step 6: Final answer
    x = 98,448.74

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1.5x scale

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.