Home / 209,962.75-314,945.28-52,191.21

Finding the Fourth Proportional to 209,962.75, 314,945.28 and 52,191.21

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Solution

The fourth proportional to 209,962.75, 314,945.28 and 52,191.21 is: 78,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,962.75 : 314,945.28 = 52,191.21 : x
  2. Step 2: Convert to fraction form
    209,962.75/314,945.28 = 52,191.21/x
  3. Step 3: Cross multiply
    209,962.75x = 314,945.28 × 52,191.21
  4. Step 4: Simplify right side
    209,962.75x = 16,437,373,672.26
  5. Step 5: Solve for x
    x = 16,437,373,672.26/209,962.75
  6. Step 6: Final answer
    x = 78,287.09

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1.5x scale

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.