Home / 209,485.40-314,228.10-162,771.80

Finding the Fourth Proportional to 209,485.40, 314,228.10 and 162,771.80

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Solution

The fourth proportional to 209,485.40, 314,228.10 and 162,771.80 is: 244,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485.40 : 314,228.10 = 162,771.80 : x
  2. Step 2: Convert to fraction form
    209,485.40/314,228.10 = 162,771.80/x
  3. Step 3: Cross multiply
    209,485.40x = 314,228.10 × 162,771.80
  4. Step 4: Simplify right side
    209,485.40x = 51,147,473,447.58
  5. Step 5: Solve for x
    x = 51,147,473,447.58/209,485.40
  6. Step 6: Final answer
    x = 244,157.70

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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.