Home / 209,208.20-313,812.30-201,043.40

Finding the Fourth Proportional to 209,208.20, 313,812.30 and 201,043.40

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Solution

The fourth proportional to 209,208.20, 313,812.30 and 201,043.40 is: 301,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,208.20 : 313,812.30 = 201,043.40 : x
  2. Step 2: Convert to fraction form
    209,208.20/313,812.30 = 201,043.40/x
  3. Step 3: Cross multiply
    209,208.20x = 313,812.30 × 201,043.40
  4. Step 4: Simplify right side
    209,208.20x = 63,089,891,753.82
  5. Step 5: Solve for x
    x = 63,089,891,753.82/209,208.20
  6. Step 6: Final answer
    x = 301,565.10

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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.