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Finding the Fourth Proportional to 448,138.50, 618,461.10 and 246,934.50

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Solution

The fourth proportional to 448,138.50, 618,461.10 and 246,934.50 is: 340,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,138.50 : 618,461.10 = 246,934.50 : x
  2. Step 2: Convert to fraction form
    448,138.50/618,461.10 = 246,934.50/x
  3. Step 3: Cross multiply
    448,138.50x = 618,461.10 × 246,934.50
  4. Step 4: Simplify right side
    448,138.50x = 152,719,382,497.95
  5. Step 5: Solve for x
    x = 152,719,382,497.95/448,138.50
  6. Step 6: Final answer
    x = 340,786.12

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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.