Home / 305,433.09-458,039.85-105,699.24

Finding the Fourth Proportional to 305,433.09, 458,039.85 and 105,699.24

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Solution

The fourth proportional to 305,433.09, 458,039.85 and 105,699.24 is: 158,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,433.09 : 458,039.85 = 105,699.24 : x
  2. Step 2: Convert to fraction form
    305,433.09/458,039.85 = 105,699.24/x
  3. Step 3: Cross multiply
    305,433.09x = 458,039.85 × 105,699.24
  4. Step 4: Simplify right side
    305,433.09x = 48,414,464,034.71
  5. Step 5: Solve for x
    x = 48,414,464,034.71/305,433.09
  6. Step 6: Final answer
    x = 158,510.87

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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.