Home / 221,192.52-305,267.58-130,578.36

Finding the Fourth Proportional to 221,192.52, 305,267.58 and 130,578.36

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Solution

The fourth proportional to 221,192.52, 305,267.58 and 130,578.36 is: 180,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,192.52 : 305,267.58 = 130,578.36 : x
  2. Step 2: Convert to fraction form
    221,192.52/305,267.58 = 130,578.36/x
  3. Step 3: Cross multiply
    221,192.52x = 305,267.58 × 130,578.36
  4. Step 4: Simplify right side
    221,192.52x = 39,861,339,957.57
  5. Step 5: Solve for x
    x = 39,861,339,957.57/221,192.52
  6. Step 6: Final answer
    x = 180,211.07

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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.