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Finding the Fourth Proportional to 485,075.26, 669,424.04 and 270,215.28

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Solution

The fourth proportional to 485,075.26, 669,424.04 and 270,215.28 is: 372,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,075.26 : 669,424.04 = 270,215.28 : x
  2. Step 2: Convert to fraction form
    485,075.26/669,424.04 = 270,215.28/x
  3. Step 3: Cross multiply
    485,075.26x = 669,424.04 × 270,215.28
  4. Step 4: Simplify right side
    485,075.26x = 180,888,604,407.33
  5. Step 5: Solve for x
    x = 180,888,604,407.33/485,075.26
  6. Step 6: Final answer
    x = 372,908.33

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