Home / 225,752.40-311,541.84-123,787.20

Finding the Fourth Proportional to 225,752.40, 311,541.84 and 123,787.20

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Solution

The fourth proportional to 225,752.40, 311,541.84 and 123,787.20 is: 170,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,752.40 : 311,541.84 = 123,787.20 : x
  2. Step 2: Convert to fraction form
    225,752.40/311,541.84 = 123,787.20/x
  3. Step 3: Cross multiply
    225,752.40x = 311,541.84 × 123,787.20
  4. Step 4: Simplify right side
    225,752.40x = 38,564,892,056.45
  5. Step 5: Solve for x
    x = 38,564,892,056.45/225,752.40
  6. Step 6: Final answer
    x = 170,828.27

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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.