Home / 283,251.58-390,887.16-154,190.56

Finding the Fourth Proportional to 283,251.58, 390,887.16 and 154,190.56

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Solution

The fourth proportional to 283,251.58, 390,887.16 and 154,190.56 is: 212,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,251.58 : 390,887.16 = 154,190.56 : x
  2. Step 2: Convert to fraction form
    283,251.58/390,887.16 = 154,190.56/x
  3. Step 3: Cross multiply
    283,251.58x = 390,887.16 × 154,190.56
  4. Step 4: Simplify right side
    283,251.58x = 60,271,110,097.21
  5. Step 5: Solve for x
    x = 60,271,110,097.21/283,251.58
  6. Step 6: Final answer
    x = 212,782.96

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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.