Home / 335,651.12-503,478-135,975.28

Finding the Fourth Proportional to 335,651.12, 503,478 and 135,975.28

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Solution

The fourth proportional to 335,651.12, 503,478 and 135,975.28 is: 203,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,651.12 : 503,478 = 135,975.28 : x
  2. Step 2: Convert to fraction form
    335,651.12/503,478 = 135,975.28/x
  3. Step 3: Cross multiply
    335,651.12x = 503,478 × 135,975.28
  4. Step 4: Simplify right side
    335,651.12x = 68,460,562,023.84
  5. Step 5: Solve for x
    x = 68,460,562,023.84/335,651.12
  6. Step 6: Final answer
    x = 203,963.45

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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.