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Finding the Fourth Proportional to 363,816.70, 545,725.05 and 311,328.70

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Solution

The fourth proportional to 363,816.70, 545,725.05 and 311,328.70 is: 466,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,816.70 : 545,725.05 = 311,328.70 : x
  2. Step 2: Convert to fraction form
    363,816.70/545,725.05 = 311,328.70/x
  3. Step 3: Cross multiply
    363,816.70x = 545,725.05 × 311,328.70
  4. Step 4: Simplify right side
    363,816.70x = 169,899,870,373.94
  5. Step 5: Solve for x
    x = 169,899,870,373.94/363,816.70
  6. Step 6: Final answer
    x = 466,993.05

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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.