Home / 398,741.06-550,305.33-243,783.27

Finding the Fourth Proportional to 398,741.06, 550,305.33 and 243,783.27

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Solution

The fourth proportional to 398,741.06, 550,305.33 and 243,783.27 is: 336,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,741.06 : 550,305.33 = 243,783.27 : x
  2. Step 2: Convert to fraction form
    398,741.06/550,305.33 = 243,783.27/x
  3. Step 3: Cross multiply
    398,741.06x = 550,305.33 × 243,783.27
  4. Step 4: Simplify right side
    398,741.06x = 134,155,228,875.39
  5. Step 5: Solve for x
    x = 134,155,228,875.39/398,741.06
  6. Step 6: Final answer
    x = 336,446.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.