Home / 208,928.65-288,321.51-113,435.35

Finding the Fourth Proportional to 208,928.65, 288,321.51 and 113,435.35

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Solution

The fourth proportional to 208,928.65, 288,321.51 and 113,435.35 is: 156,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,928.65 : 288,321.51 = 113,435.35 : x
  2. Step 2: Convert to fraction form
    208,928.65/288,321.51 = 113,435.35/x
  3. Step 3: Cross multiply
    208,928.65x = 288,321.51 × 113,435.35
  4. Step 4: Simplify right side
    208,928.65x = 32,705,851,399.38
  5. Step 5: Solve for x
    x = 32,705,851,399.38/208,928.65
  6. Step 6: Final answer
    x = 156,540.77

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1.5x scale

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.