Home / 217,136.80-325,705.20-92,490.40

Finding the Fourth Proportional to 217,136.80, 325,705.20 and 92,490.40

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Solution

The fourth proportional to 217,136.80, 325,705.20 and 92,490.40 is: 138,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,136.80 : 325,705.20 = 92,490.40 : x
  2. Step 2: Convert to fraction form
    217,136.80/325,705.20 = 92,490.40/x
  3. Step 3: Cross multiply
    217,136.80x = 325,705.20 × 92,490.40
  4. Step 4: Simplify right side
    217,136.80x = 30,124,604,230.08
  5. Step 5: Solve for x
    x = 30,124,604,230.08/217,136.80
  6. Step 6: Final answer
    x = 138,735.60

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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.