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Finding the Fourth Proportional to 371,200.20, 556,800.30 and 282,626.70

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Solution

The fourth proportional to 371,200.20, 556,800.30 and 282,626.70 is: 423,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,200.20 : 556,800.30 = 282,626.70 : x
  2. Step 2: Convert to fraction form
    371,200.20/556,800.30 = 282,626.70/x
  3. Step 3: Cross multiply
    371,200.20x = 556,800.30 × 282,626.70
  4. Step 4: Simplify right side
    371,200.20x = 157,366,631,348.01
  5. Step 5: Solve for x
    x = 157,366,631,348.01/371,200.20
  6. Step 6: Final answer
    x = 423,940.05

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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.