Home / 357,258.17-493,247.22-221,436.56

Finding the Fourth Proportional to 357,258.17, 493,247.22 and 221,436.56

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Solution

The fourth proportional to 357,258.17, 493,247.22 and 221,436.56 is: 305,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,258.17 : 493,247.22 = 221,436.56 : x
  2. Step 2: Convert to fraction form
    357,258.17/493,247.22 = 221,436.56/x
  3. Step 3: Cross multiply
    357,258.17x = 493,247.22 × 221,436.56
  4. Step 4: Simplify right side
    357,258.17x = 109,222,967,626.36
  5. Step 5: Solve for x
    x = 109,222,967,626.36/357,258.17
  6. Step 6: Final answer
    x = 305,725.60

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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.