Home / 220,509.85-303,981.50-155,865.04

Finding the Fourth Proportional to 220,509.85, 303,981.50 and 155,865.04

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Solution

The fourth proportional to 220,509.85, 303,981.50 and 155,865.04 is: 214,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,509.85 : 303,981.50 = 155,865.04 : x
  2. Step 2: Convert to fraction form
    220,509.85/303,981.50 = 155,865.04/x
  3. Step 3: Cross multiply
    220,509.85x = 303,981.50 × 155,865.04
  4. Step 4: Simplify right side
    220,509.85x = 47,380,087,409.73
  5. Step 5: Solve for x
    x = 47,380,087,409.73/220,509.85
  6. Step 6: Final answer
    x = 214,866.08

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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.