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Finding the Fourth Proportional to 217,751.04, 326,460.43 and 99,339.57

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Solution

The fourth proportional to 217,751.04, 326,460.43 and 99,339.57 is: 148,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,751.04 : 326,460.43 = 99,339.57 : x
  2. Step 2: Convert to fraction form
    217,751.04/326,460.43 = 99,339.57/x
  3. Step 3: Cross multiply
    217,751.04x = 326,460.43 × 99,339.57
  4. Step 4: Simplify right side
    217,751.04x = 32,430,438,738.22
  5. Step 5: Solve for x
    x = 32,430,438,738.22/217,751.04
  6. Step 6: Final answer
    x = 148,933.57

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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.