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Finding the Fourth Proportional to 254,003.40, 355,138.20 and 254,003.40

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Solution

The fourth proportional to 254,003.40, 355,138.20 and 254,003.40 is: 355,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,003.40 : 355,138.20 = 254,003.40 : x
  2. Step 2: Convert to fraction form
    254,003.40/355,138.20 = 254,003.40/x
  3. Step 3: Cross multiply
    254,003.40x = 355,138.20 × 254,003.40
  4. Step 4: Simplify right side
    254,003.40x = 90,206,310,269.88
  5. Step 5: Solve for x
    x = 90,206,310,269.88/254,003.40
  6. Step 6: Final answer
    x = 355,138.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.