Home / 284,854.12-427,280.64-107,400.94

Finding the Fourth Proportional to 284,854.12, 427,280.64 and 107,400.94

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Solution

The fourth proportional to 284,854.12, 427,280.64 and 107,400.94 is: 161,101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,854.12 : 427,280.64 = 107,400.94 : x
  2. Step 2: Convert to fraction form
    284,854.12/427,280.64 = 107,400.94/x
  3. Step 3: Cross multiply
    284,854.12x = 427,280.64 × 107,400.94
  4. Step 4: Simplify right side
    284,854.12x = 45,890,342,379.80
  5. Step 5: Solve for x
    x = 45,890,342,379.80/284,854.12
  6. Step 6: Final answer
    x = 161,101.21

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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.