Home / 345,629.30-476,859.15-272,802.20

Finding the Fourth Proportional to 345,629.30, 476,859.15 and 272,802.20

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Solution

The fourth proportional to 345,629.30, 476,859.15 and 272,802.20 is: 376,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,629.30 : 476,859.15 = 272,802.20 : x
  2. Step 2: Convert to fraction form
    345,629.30/476,859.15 = 272,802.20/x
  3. Step 3: Cross multiply
    345,629.30x = 476,859.15 × 272,802.20
  4. Step 4: Simplify right side
    345,629.30x = 130,088,222,825.83
  5. Step 5: Solve for x
    x = 130,088,222,825.83/345,629.30
  6. Step 6: Final answer
    x = 376,380.78

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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.