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Finding the Fourth Proportional to 303,533.80, 455,300.70 and 126,022.30

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Solution

The fourth proportional to 303,533.80, 455,300.70 and 126,022.30 is: 189,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,533.80 : 455,300.70 = 126,022.30 : x
  2. Step 2: Convert to fraction form
    303,533.80/455,300.70 = 126,022.30/x
  3. Step 3: Cross multiply
    303,533.80x = 455,300.70 × 126,022.30
  4. Step 4: Simplify right side
    303,533.80x = 57,378,041,405.61
  5. Step 5: Solve for x
    x = 57,378,041,405.61/303,533.80
  6. Step 6: Final answer
    x = 189,033.45

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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.