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Finding the Fourth Proportional to 481,307.26, 663,995.47 and 290,214.49

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Solution

The fourth proportional to 481,307.26, 663,995.47 and 290,214.49 is: 400,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,307.26 : 663,995.47 = 290,214.49 : x
  2. Step 2: Convert to fraction form
    481,307.26/663,995.47 = 290,214.49/x
  3. Step 3: Cross multiply
    481,307.26x = 663,995.47 × 290,214.49
  4. Step 4: Simplify right side
    481,307.26x = 192,701,101,917.31
  5. Step 5: Solve for x
    x = 192,701,101,917.31/481,307.26
  6. Step 6: Final answer
    x = 400,370.24

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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.