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Finding the Fourth Proportional to 236,139.60, 354,209.40 and 200,710.20

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Solution

The fourth proportional to 236,139.60, 354,209.40 and 200,710.20 is: 301,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,139.60 : 354,209.40 = 200,710.20 : x
  2. Step 2: Convert to fraction form
    236,139.60/354,209.40 = 200,710.20/x
  3. Step 3: Cross multiply
    236,139.60x = 354,209.40 × 200,710.20
  4. Step 4: Simplify right side
    236,139.60x = 71,093,439,515.88
  5. Step 5: Solve for x
    x = 71,093,439,515.88/236,139.60
  6. Step 6: Final answer
    x = 301,065.30

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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.