Home / 259,529.60-389,307.20-135,113.60

Finding the Fourth Proportional to 259,529.60, 389,307.20 and 135,113.60

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Solution

The fourth proportional to 259,529.60, 389,307.20 and 135,113.60 is: 202,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,529.60 : 389,307.20 = 135,113.60 : x
  2. Step 2: Convert to fraction form
    259,529.60/389,307.20 = 135,113.60/x
  3. Step 3: Cross multiply
    259,529.60x = 389,307.20 × 135,113.60
  4. Step 4: Simplify right side
    259,529.60x = 52,600,697,297.92
  5. Step 5: Solve for x
    x = 52,600,697,297.92/259,529.60
  6. Step 6: Final answer
    x = 202,677.06

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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.