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Finding the Fourth Proportional to 303,500.79, 418,813.20 and 167,531.40

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Solution

The fourth proportional to 303,500.79, 418,813.20 and 167,531.40 is: 231,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,500.79 : 418,813.20 = 167,531.40 : x
  2. Step 2: Convert to fraction form
    303,500.79/418,813.20 = 167,531.40/x
  3. Step 3: Cross multiply
    303,500.79x = 418,813.20 × 167,531.40
  4. Step 4: Simplify right side
    303,500.79x = 70,164,361,734.48
  5. Step 5: Solve for x
    x = 70,164,361,734.48/303,500.79
  6. Step 6: Final answer
    x = 231,183.46

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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.