Home / 380,004.48-569,989.92-99,515.52

Finding the Fourth Proportional to 380,004.48, 569,989.92 and 99,515.52

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Solution

The fourth proportional to 380,004.48, 569,989.92 and 99,515.52 is: 149,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,004.48 : 569,989.92 = 99,515.52 : x
  2. Step 2: Convert to fraction form
    380,004.48/569,989.92 = 99,515.52/x
  3. Step 3: Cross multiply
    380,004.48x = 569,989.92 × 99,515.52
  4. Step 4: Simplify right side
    380,004.48x = 56,722,843,283.56
  5. Step 5: Solve for x
    x = 56,722,843,283.56/380,004.48
  6. Step 6: Final answer
    x = 149,268.88

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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.