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Finding the Fourth Proportional to 240,009.60, 360,014.40 and 198,019.20

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Solution

The fourth proportional to 240,009.60, 360,014.40 and 198,019.20 is: 297,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,009.60 : 360,014.40 = 198,019.20 : x
  2. Step 2: Convert to fraction form
    240,009.60/360,014.40 = 198,019.20/x
  3. Step 3: Cross multiply
    240,009.60x = 360,014.40 × 198,019.20
  4. Step 4: Simplify right side
    240,009.60x = 71,289,763,476.48
  5. Step 5: Solve for x
    x = 71,289,763,476.48/240,009.60
  6. Step 6: Final answer
    x = 297,028.80

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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.