Home / 284,912.20-426,785.10-144,749.80

Finding the Fourth Proportional to 284,912.20, 426,785.10 and 144,749.80

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Solution

The fourth proportional to 284,912.20, 426,785.10 and 144,749.80 is: 216,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,912.20 : 426,785.10 = 144,749.80 : x
  2. Step 2: Convert to fraction form
    284,912.20/426,785.10 = 144,749.80/x
  3. Step 3: Cross multiply
    284,912.20x = 426,785.10 × 144,749.80
  4. Step 4: Simplify right side
    284,912.20x = 61,777,057,867.98
  5. Step 5: Solve for x
    x = 61,777,057,867.98/284,912.20
  6. Step 6: Final answer
    x = 216,828.40

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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.