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Finding the Fourth Proportional to 338,345.76, 466,693.08 and 217,640.40

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Solution

The fourth proportional to 338,345.76, 466,693.08 and 217,640.40 is: 300,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,345.76 : 466,693.08 = 217,640.40 : x
  2. Step 2: Convert to fraction form
    338,345.76/466,693.08 = 217,640.40/x
  3. Step 3: Cross multiply
    338,345.76x = 466,693.08 × 217,640.40
  4. Step 4: Simplify right side
    338,345.76x = 101,571,268,608.43
  5. Step 5: Solve for x
    x = 101,571,268,608.43/338,345.76
  6. Step 6: Final answer
    x = 300,199.62

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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.