Home / 371,454.12-557,183.61-90,971.37

Finding the Fourth Proportional to 371,454.12, 557,183.61 and 90,971.37

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Solution

The fourth proportional to 371,454.12, 557,183.61 and 90,971.37 is: 136,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,454.12 : 557,183.61 = 90,971.37 : x
  2. Step 2: Convert to fraction form
    371,454.12/557,183.61 = 90,971.37/x
  3. Step 3: Cross multiply
    371,454.12x = 557,183.61 × 90,971.37
  4. Step 4: Simplify right side
    371,454.12x = 50,687,756,343.25
  5. Step 5: Solve for x
    x = 50,687,756,343.25/371,454.12
  6. Step 6: Final answer
    x = 136,457.65

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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.