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Finding the Fourth Proportional to 360,274.98, 540,330.21 and 135,659.10

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Solution

The fourth proportional to 360,274.98, 540,330.21 and 135,659.10 is: 203,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,274.98 : 540,330.21 = 135,659.10 : x
  2. Step 2: Convert to fraction form
    360,274.98/540,330.21 = 135,659.10/x
  3. Step 3: Cross multiply
    360,274.98x = 540,330.21 × 135,659.10
  4. Step 4: Simplify right side
    360,274.98x = 73,300,709,991.41
  5. Step 5: Solve for x
    x = 73,300,709,991.41/360,274.98
  6. Step 6: Final answer
    x = 203,457.68

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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.