Home / 281,569.21-388,593.38-160,728.66

Finding the Fourth Proportional to 281,569.21, 388,593.38 and 160,728.66

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Solution

The fourth proportional to 281,569.21, 388,593.38 and 160,728.66 is: 221,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,569.21 : 388,593.38 = 160,728.66 : x
  2. Step 2: Convert to fraction form
    281,569.21/388,593.38 = 160,728.66/x
  3. Step 3: Cross multiply
    281,569.21x = 388,593.38 × 160,728.66
  4. Step 4: Simplify right side
    281,569.21x = 62,458,092,448.63
  5. Step 5: Solve for x
    x = 62,458,092,448.63/281,569.21
  6. Step 6: Final answer
    x = 221,821.46

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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.