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Finding the Fourth Proportional to 299,116.20, 448,018.20 and 259,750.20

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Solution

The fourth proportional to 299,116.20, 448,018.20 and 259,750.20 is: 389,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,116.20 : 448,018.20 = 259,750.20 : x
  2. Step 2: Convert to fraction form
    299,116.20/448,018.20 = 259,750.20/x
  3. Step 3: Cross multiply
    299,116.20x = 448,018.20 × 259,750.20
  4. Step 4: Simplify right side
    299,116.20x = 116,372,817,053.64
  5. Step 5: Solve for x
    x = 116,372,817,053.64/299,116.20
  6. Step 6: Final answer
    x = 389,055.55

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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.