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Finding the Fourth Proportional to 339,407.64, 468,355.12 and 196,176.96

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Solution

The fourth proportional to 339,407.64, 468,355.12 and 196,176.96 is: 270,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,407.64 : 468,355.12 = 196,176.96 : x
  2. Step 2: Convert to fraction form
    339,407.64/468,355.12 = 196,176.96/x
  3. Step 3: Cross multiply
    339,407.64x = 468,355.12 × 196,176.96
  4. Step 4: Simplify right side
    339,407.64x = 91,880,483,642.04
  5. Step 5: Solve for x
    x = 91,880,483,642.04/339,407.64
  6. Step 6: Final answer
    x = 270,708.35

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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.