Home / 216,723.71-298,947.95-143,136.60

Finding the Fourth Proportional to 216,723.71, 298,947.95 and 143,136.60

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Solution

The fourth proportional to 216,723.71, 298,947.95 and 143,136.60 is: 197,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,723.71 : 298,947.95 = 143,136.60 : x
  2. Step 2: Convert to fraction form
    216,723.71/298,947.95 = 143,136.60/x
  3. Step 3: Cross multiply
    216,723.71x = 298,947.95 × 143,136.60
  4. Step 4: Simplify right side
    216,723.71x = 42,790,391,839.99
  5. Step 5: Solve for x
    x = 42,790,391,839.99/216,723.71
  6. Step 6: Final answer
    x = 197,442.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.