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Finding the Fourth Proportional to 240,866.80, 360,911.40 and 201,209.20

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Solution

The fourth proportional to 240,866.80, 360,911.40 and 201,209.20 is: 301,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,866.80 : 360,911.40 = 201,209.20 : x
  2. Step 2: Convert to fraction form
    240,866.80/360,911.40 = 201,209.20/x
  3. Step 3: Cross multiply
    240,866.80x = 360,911.40 × 201,209.20
  4. Step 4: Simplify right side
    240,866.80x = 72,618,694,064.88
  5. Step 5: Solve for x
    x = 72,618,694,064.88/240,866.80
  6. Step 6: Final answer
    x = 301,489.01

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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.