Home / 284,217.08-423,855.28-280,403.56

Finding the Fourth Proportional to 284,217.08, 423,855.28 and 280,403.56

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Solution

The fourth proportional to 284,217.08, 423,855.28 and 280,403.56 is: 418,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,217.08 : 423,855.28 = 280,403.56 : x
  2. Step 2: Convert to fraction form
    284,217.08/423,855.28 = 280,403.56/x
  3. Step 3: Cross multiply
    284,217.08x = 423,855.28 × 280,403.56
  4. Step 4: Simplify right side
    284,217.08x = 118,850,529,436.80
  5. Step 5: Solve for x
    x = 118,850,529,436.80/284,217.08
  6. Step 6: Final answer
    x = 418,168.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.