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Finding the Fourth Proportional to 360,043.20, 540,064.80 and 110,725.20

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Solution

The fourth proportional to 360,043.20, 540,064.80 and 110,725.20 is: 166,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,043.20 : 540,064.80 = 110,725.20 : x
  2. Step 2: Convert to fraction form
    360,043.20/540,064.80 = 110,725.20/x
  3. Step 3: Cross multiply
    360,043.20x = 540,064.80 × 110,725.20
  4. Step 4: Simplify right side
    360,043.20x = 59,798,782,992.96
  5. Step 5: Solve for x
    x = 59,798,782,992.96/360,043.20
  6. Step 6: Final answer
    x = 166,087.80

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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.