Home / 209,475.40-314,869.20-205,538.80

Finding the Fourth Proportional to 209,475.40, 314,869.20 and 205,538.80

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Solution

The fourth proportional to 209,475.40, 314,869.20 and 205,538.80 is: 308,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,475.40 : 314,869.20 = 205,538.80 : x
  2. Step 2: Convert to fraction form
    209,475.40/314,869.20 = 205,538.80/x
  3. Step 3: Cross multiply
    209,475.40x = 314,869.20 × 205,538.80
  4. Step 4: Simplify right side
    209,475.40x = 64,717,837,524.96
  5. Step 5: Solve for x
    x = 64,717,837,524.96/209,475.40
  6. Step 6: Final answer
    x = 308,951.97

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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.