Home / 364,837.40-547,310.82-128,138.36

Finding the Fourth Proportional to 364,837.40, 547,310.82 and 128,138.36

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Solution

The fourth proportional to 364,837.40, 547,310.82 and 128,138.36 is: 192,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,837.40 : 547,310.82 = 128,138.36 : x
  2. Step 2: Convert to fraction form
    364,837.40/547,310.82 = 128,138.36/x
  3. Step 3: Cross multiply
    364,837.40x = 547,310.82 × 128,138.36
  4. Step 4: Simplify right side
    364,837.40x = 70,131,510,885.06
  5. Step 5: Solve for x
    x = 70,131,510,885.06/364,837.40
  6. Step 6: Final answer
    x = 192,226.76

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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.