Home / 225,411.23-311,068.02-123,443.36

Finding the Fourth Proportional to 225,411.23, 311,068.02 and 123,443.36

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Solution

The fourth proportional to 225,411.23, 311,068.02 and 123,443.36 is: 170,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,411.23 : 311,068.02 = 123,443.36 : x
  2. Step 2: Convert to fraction form
    225,411.23/311,068.02 = 123,443.36/x
  3. Step 3: Cross multiply
    225,411.23x = 311,068.02 × 123,443.36
  4. Step 4: Simplify right side
    225,411.23x = 38,399,280,022.01
  5. Step 5: Solve for x
    x = 38,399,280,022.01/225,411.23
  6. Step 6: Final answer
    x = 170,352.12

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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.