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Finding the Fourth Proportional to 284,015.85, 426,026.21 and 134,259.81

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Solution

The fourth proportional to 284,015.85, 426,026.21 and 134,259.81 is: 201,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,015.85 : 426,026.21 = 134,259.81 : x
  2. Step 2: Convert to fraction form
    284,015.85/426,026.21 = 134,259.81/x
  3. Step 3: Cross multiply
    284,015.85x = 426,026.21 × 134,259.81
  4. Step 4: Simplify right side
    284,015.85x = 57,198,197,338.32
  5. Step 5: Solve for x
    x = 57,198,197,338.32/284,015.85
  6. Step 6: Final answer
    x = 201,390.86

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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.