Home / 284,816.90-427,249.65-74,454.50

Finding the Fourth Proportional to 284,816.90, 427,249.65 and 74,454.50

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Solution

The fourth proportional to 284,816.90, 427,249.65 and 74,454.50 is: 111,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,816.90 : 427,249.65 = 74,454.50 : x
  2. Step 2: Convert to fraction form
    284,816.90/427,249.65 = 74,454.50/x
  3. Step 3: Cross multiply
    284,816.90x = 427,249.65 × 74,454.50
  4. Step 4: Simplify right side
    284,816.90x = 31,810,659,065.93
  5. Step 5: Solve for x
    x = 31,810,659,065.93/284,816.90
  6. Step 6: Final answer
    x = 111,688.10

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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.