Home / 316,382.40-474,268.32-105,903.36

Finding the Fourth Proportional to 316,382.40, 474,268.32 and 105,903.36

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Solution

The fourth proportional to 316,382.40, 474,268.32 and 105,903.36 is: 158,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,382.40 : 474,268.32 = 105,903.36 : x
  2. Step 2: Convert to fraction form
    316,382.40/474,268.32 = 105,903.36/x
  3. Step 3: Cross multiply
    316,382.40x = 474,268.32 × 105,903.36
  4. Step 4: Simplify right side
    316,382.40x = 50,226,608,629.56
  5. Step 5: Solve for x
    x = 50,226,608,629.56/316,382.40
  6. Step 6: Final answer
    x = 158,752.85

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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.