Home / 354,286.28-531,338.70-104,909.96

Finding the Fourth Proportional to 354,286.28, 531,338.70 and 104,909.96

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Solution

The fourth proportional to 354,286.28, 531,338.70 and 104,909.96 is: 157,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,286.28 : 531,338.70 = 104,909.96 : x
  2. Step 2: Convert to fraction form
    354,286.28/531,338.70 = 104,909.96/x
  3. Step 3: Cross multiply
    354,286.28x = 531,338.70 × 104,909.96
  4. Step 4: Simplify right side
    354,286.28x = 55,742,721,763.45
  5. Step 5: Solve for x
    x = 55,742,721,763.45/354,286.28
  6. Step 6: Final answer
    x = 157,338.08

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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.