Home / 256,210.11-384,548.39-136,367.68

Finding the Fourth Proportional to 256,210.11, 384,548.39 and 136,367.68

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Solution

The fourth proportional to 256,210.11, 384,548.39 and 136,367.68 is: 204,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,210.11 : 384,548.39 = 136,367.68 : x
  2. Step 2: Convert to fraction form
    256,210.11/384,548.39 = 136,367.68/x
  3. Step 3: Cross multiply
    256,210.11x = 384,548.39 × 136,367.68
  4. Step 4: Simplify right side
    256,210.11x = 52,439,969,916.16
  5. Step 5: Solve for x
    x = 52,439,969,916.16/256,210.11
  6. Step 6: Final answer
    x = 204,675.64

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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.