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Finding the Fourth Proportional to 360,503.77, 540,756.83 and 135,803.90

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Solution

The fourth proportional to 360,503.77, 540,756.83 and 135,803.90 is: 203,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,503.77 : 540,756.83 = 135,803.90 : x
  2. Step 2: Convert to fraction form
    360,503.77/540,756.83 = 135,803.90/x
  3. Step 3: Cross multiply
    360,503.77x = 540,756.83 × 135,803.90
  4. Step 4: Simplify right side
    360,503.77x = 73,436,886,465.64
  5. Step 5: Solve for x
    x = 73,436,886,465.64/360,503.77
  6. Step 6: Final answer
    x = 203,706.29

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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.