Home / 284,765.40-392,994.78-163,921.56

Finding the Fourth Proportional to 284,765.40, 392,994.78 and 163,921.56

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Solution

The fourth proportional to 284,765.40, 392,994.78 and 163,921.56 is: 226,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,765.40 : 392,994.78 = 163,921.56 : x
  2. Step 2: Convert to fraction form
    284,765.40/392,994.78 = 163,921.56/x
  3. Step 3: Cross multiply
    284,765.40x = 392,994.78 × 163,921.56
  4. Step 4: Simplify right side
    284,765.40x = 64,420,317,409.46
  5. Step 5: Solve for x
    x = 64,420,317,409.46/284,765.40
  6. Step 6: Final answer
    x = 226,222.42

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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.