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Finding the Fourth Proportional to 317,271.60, 475,907.40 and 303,274.80

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Solution

The fourth proportional to 317,271.60, 475,907.40 and 303,274.80 is: 454,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,271.60 : 475,907.40 = 303,274.80 : x
  2. Step 2: Convert to fraction form
    317,271.60/475,907.40 = 303,274.80/x
  3. Step 3: Cross multiply
    317,271.60x = 475,907.40 × 303,274.80
  4. Step 4: Simplify right side
    317,271.60x = 144,330,721,553.52
  5. Step 5: Solve for x
    x = 144,330,721,553.52/317,271.60
  6. Step 6: Final answer
    x = 454,912.20

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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.