Home / 240,252.30-360,378.45-209,148.30

Finding the Fourth Proportional to 240,252.30, 360,378.45 and 209,148.30

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Solution

The fourth proportional to 240,252.30, 360,378.45 and 209,148.30 is: 313,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,252.30 : 360,378.45 = 209,148.30 : x
  2. Step 2: Convert to fraction form
    240,252.30/360,378.45 = 209,148.30/x
  3. Step 3: Cross multiply
    240,252.30x = 360,378.45 × 209,148.30
  4. Step 4: Simplify right side
    240,252.30x = 75,372,540,174.14
  5. Step 5: Solve for x
    x = 75,372,540,174.14/240,252.30
  6. Step 6: Final answer
    x = 313,722.45

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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.