Home / 305,038.32-457,629.92-105,360.36

Finding the Fourth Proportional to 305,038.32, 457,629.92 and 105,360.36

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Solution

The fourth proportional to 305,038.32, 457,629.92 and 105,360.36 is: 158,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,038.32 : 457,629.92 = 105,360.36 : x
  2. Step 2: Convert to fraction form
    305,038.32/457,629.92 = 105,360.36/x
  3. Step 3: Cross multiply
    305,038.32x = 457,629.92 × 105,360.36
  4. Step 4: Simplify right side
    305,038.32x = 48,216,052,591.17
  5. Step 5: Solve for x
    x = 48,216,052,591.17/305,038.32
  6. Step 6: Final answer
    x = 158,065.56

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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.