Home / 284,986.20-426,896.10-144,823.80

Finding the Fourth Proportional to 284,986.20, 426,896.10 and 144,823.80

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Solution

The fourth proportional to 284,986.20, 426,896.10 and 144,823.80 is: 216,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,986.20 : 426,896.10 = 144,823.80 : x
  2. Step 2: Convert to fraction form
    284,986.20/426,896.10 = 144,823.80/x
  3. Step 3: Cross multiply
    284,986.20x = 426,896.10 × 144,823.80
  4. Step 4: Simplify right side
    284,986.20x = 61,824,715,407.18
  5. Step 5: Solve for x
    x = 61,824,715,407.18/284,986.20
  6. Step 6: Final answer
    x = 216,939.33

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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.