Home / 321,721.20-482,569.66-97,075.64

Finding the Fourth Proportional to 321,721.20, 482,569.66 and 97,075.64

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Solution

The fourth proportional to 321,721.20, 482,569.66 and 97,075.64 is: 145,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,721.20 : 482,569.66 = 97,075.64 : x
  2. Step 2: Convert to fraction form
    321,721.20/482,569.66 = 97,075.64/x
  3. Step 3: Cross multiply
    321,721.20x = 482,569.66 × 97,075.64
  4. Step 4: Simplify right side
    321,721.20x = 46,845,758,589.08
  5. Step 5: Solve for x
    x = 46,845,758,589.08/321,721.20
  6. Step 6: Final answer
    x = 145,609.80

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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.