Home / 325,307.20-487,010.40-231,995.20

Finding the Fourth Proportional to 325,307.20, 487,010.40 and 231,995.20

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Solution

The fourth proportional to 325,307.20, 487,010.40 and 231,995.20 is: 347,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,307.20 : 487,010.40 = 231,995.20 : x
  2. Step 2: Convert to fraction form
    325,307.20/487,010.40 = 231,995.20/x
  3. Step 3: Cross multiply
    325,307.20x = 487,010.40 × 231,995.20
  4. Step 4: Simplify right side
    325,307.20x = 112,984,075,150.08
  5. Step 5: Solve for x
    x = 112,984,075,150.08/325,307.20
  6. Step 6: Final answer
    x = 347,315.02

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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.