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Finding the Fourth Proportional to 297,797.80, 446,696.70 and 278,114.80

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Solution

The fourth proportional to 297,797.80, 446,696.70 and 278,114.80 is: 417,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,797.80 : 446,696.70 = 278,114.80 : x
  2. Step 2: Convert to fraction form
    297,797.80/446,696.70 = 278,114.80/x
  3. Step 3: Cross multiply
    297,797.80x = 446,696.70 × 278,114.80
  4. Step 4: Simplify right side
    297,797.80x = 124,232,963,381.16
  5. Step 5: Solve for x
    x = 124,232,963,381.16/297,797.80
  6. Step 6: Final answer
    x = 417,172.20

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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.