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Finding the Fourth Proportional to 360,001.20, 540,001.80 and 192,039.60

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Solution

The fourth proportional to 360,001.20, 540,001.80 and 192,039.60 is: 288,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,001.20 : 540,001.80 = 192,039.60 : x
  2. Step 2: Convert to fraction form
    360,001.20/540,001.80 = 192,039.60/x
  3. Step 3: Cross multiply
    360,001.20x = 540,001.80 × 192,039.60
  4. Step 4: Simplify right side
    360,001.20x = 103,701,729,671.28
  5. Step 5: Solve for x
    x = 103,701,729,671.28/360,001.20
  6. Step 6: Final answer
    x = 288,059.40

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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.