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Finding the Fourth Proportional to 358,734.80, 538,102.20 and 302,747.60

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Solution

The fourth proportional to 358,734.80, 538,102.20 and 302,747.60 is: 454,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,734.80 : 538,102.20 = 302,747.60 : x
  2. Step 2: Convert to fraction form
    358,734.80/538,102.20 = 302,747.60/x
  3. Step 3: Cross multiply
    358,734.80x = 538,102.20 × 302,747.60
  4. Step 4: Simplify right side
    358,734.80x = 162,909,149,604.72
  5. Step 5: Solve for x
    x = 162,909,149,604.72/358,734.80
  6. Step 6: Final answer
    x = 454,121.40

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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.