Home / 221,621.57-332,432.35-55,409.57

Finding the Fourth Proportional to 221,621.57, 332,432.35 and 55,409.57

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Solution

The fourth proportional to 221,621.57, 332,432.35 and 55,409.57 is: 83,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,621.57 : 332,432.35 = 55,409.57 : x
  2. Step 2: Convert to fraction form
    221,621.57/332,432.35 = 55,409.57/x
  3. Step 3: Cross multiply
    221,621.57x = 332,432.35 × 55,409.57
  4. Step 4: Simplify right side
    221,621.57x = 18,419,931,628.38
  5. Step 5: Solve for x
    x = 18,419,931,628.38/221,621.57
  6. Step 6: Final answer
    x = 83,114.35

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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.