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Finding the Fourth Proportional to 448,007.20, 618,249.64 and 246,803.20

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Solution

The fourth proportional to 448,007.20, 618,249.64 and 246,803.20 is: 340,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,007.20 : 618,249.64 = 246,803.20 : x
  2. Step 2: Convert to fraction form
    448,007.20/618,249.64 = 246,803.20/x
  3. Step 3: Cross multiply
    448,007.20x = 618,249.64 × 246,803.20
  4. Step 4: Simplify right side
    448,007.20x = 152,585,989,550.85
  5. Step 5: Solve for x
    x = 152,585,989,550.85/448,007.20
  6. Step 6: Final answer
    x = 340,588.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.