Home / 336,938.96-505,406.40-84,218.18

Finding the Fourth Proportional to 336,938.96, 505,406.40 and 84,218.18

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Solution

The fourth proportional to 336,938.96, 505,406.40 and 84,218.18 is: 126,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,938.96 : 505,406.40 = 84,218.18 : x
  2. Step 2: Convert to fraction form
    336,938.96/505,406.40 = 84,218.18/x
  3. Step 3: Cross multiply
    336,938.96x = 505,406.40 × 84,218.18
  4. Step 4: Simplify right side
    336,938.96x = 42,564,407,168.35
  5. Step 5: Solve for x
    x = 42,564,407,168.35/336,938.96
  6. Step 6: Final answer
    x = 126,326.76

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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.