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Finding the Fourth Proportional to 338,362.72, 466,729.32 and 217,661.36

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Solution

The fourth proportional to 338,362.72, 466,729.32 and 217,661.36 is: 300,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,362.72 : 466,729.32 = 217,661.36 : x
  2. Step 2: Convert to fraction form
    338,362.72/466,729.32 = 217,661.36/x
  3. Step 3: Cross multiply
    338,362.72x = 466,729.32 × 217,661.36
  4. Step 4: Simplify right side
    338,362.72x = 101,588,938,543.08
  5. Step 5: Solve for x
    x = 101,588,938,543.08/338,362.72
  6. Step 6: Final answer
    x = 300,236.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.