Home / 305,825.10-458,810.55-147,923.70

Finding the Fourth Proportional to 305,825.10, 458,810.55 and 147,923.70

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Solution

The fourth proportional to 305,825.10, 458,810.55 and 147,923.70 is: 221,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,825.10 : 458,810.55 = 147,923.70 : x
  2. Step 2: Convert to fraction form
    305,825.10/458,810.55 = 147,923.70/x
  3. Step 3: Cross multiply
    305,825.10x = 458,810.55 × 147,923.70
  4. Step 4: Simplify right side
    305,825.10x = 67,868,954,155.04
  5. Step 5: Solve for x
    x = 67,868,954,155.04/305,825.10
  6. Step 6: Final answer
    x = 221,920.81

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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.