Home / 208,928.04-313,406.64-90,606.48

Finding the Fourth Proportional to 208,928.04, 313,406.64 and 90,606.48

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Solution

The fourth proportional to 208,928.04, 313,406.64 and 90,606.48 is: 135,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,928.04 : 313,406.64 = 90,606.48 : x
  2. Step 2: Convert to fraction form
    208,928.04/313,406.64 = 90,606.48/x
  3. Step 3: Cross multiply
    208,928.04x = 313,406.64 × 90,606.48
  4. Step 4: Simplify right side
    208,928.04x = 28,396,672,459.03
  5. Step 5: Solve for x
    x = 28,396,672,459.03/208,928.04
  6. Step 6: Final answer
    x = 135,916.04

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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.