Home / 221,033.81-305,075.87-140,445.60

Finding the Fourth Proportional to 221,033.81, 305,075.87 and 140,445.60

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Solution

The fourth proportional to 221,033.81, 305,075.87 and 140,445.60 is: 193,846.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,033.81 : 305,075.87 = 140,445.60 : x
  2. Step 2: Convert to fraction form
    221,033.81/305,075.87 = 140,445.60/x
  3. Step 3: Cross multiply
    221,033.81x = 305,075.87 × 140,445.60
  4. Step 4: Simplify right side
    221,033.81x = 42,846,562,288.08
  5. Step 5: Solve for x
    x = 42,846,562,288.08/221,033.81
  6. Step 6: Final answer
    x = 193,846.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.