Home / 253,845.41-380,787.24-85,366.22

Finding the Fourth Proportional to 253,845.41, 380,787.24 and 85,366.22

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Solution

The fourth proportional to 253,845.41, 380,787.24 and 85,366.22 is: 128,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,845.41 : 380,787.24 = 85,366.22 : x
  2. Step 2: Convert to fraction form
    253,845.41/380,787.24 = 85,366.22/x
  3. Step 3: Cross multiply
    253,845.41x = 380,787.24 × 85,366.22
  4. Step 4: Simplify right side
    253,845.41x = 32,506,365,399.10
  5. Step 5: Solve for x
    x = 32,506,365,399.10/253,845.41
  6. Step 6: Final answer
    x = 128,055.76

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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.