Home / 306,933.16-460,438.62-85,317.16

Finding the Fourth Proportional to 306,933.16, 460,438.62 and 85,317.16

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Solution

The fourth proportional to 306,933.16, 460,438.62 and 85,317.16 is: 127,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,933.16 : 460,438.62 = 85,317.16 : x
  2. Step 2: Convert to fraction form
    306,933.16/460,438.62 = 85,317.16/x
  3. Step 3: Cross multiply
    306,933.16x = 460,438.62 × 85,317.16
  4. Step 4: Simplify right side
    306,933.16x = 39,283,315,412.72
  5. Step 5: Solve for x
    x = 39,283,315,412.72/306,933.16
  6. Step 6: Final answer
    x = 127,986.55

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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.