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Finding the Fourth Proportional to 299,477.10, 449,215.65 and 277,825.80

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Solution

The fourth proportional to 299,477.10, 449,215.65 and 277,825.80 is: 416,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,477.10 : 449,215.65 = 277,825.80 : x
  2. Step 2: Convert to fraction form
    299,477.10/449,215.65 = 277,825.80/x
  3. Step 3: Cross multiply
    299,477.10x = 449,215.65 × 277,825.80
  4. Step 4: Simplify right side
    299,477.10x = 124,803,697,333.77
  5. Step 5: Solve for x
    x = 124,803,697,333.77/299,477.10
  6. Step 6: Final answer
    x = 416,738.70

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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.