Home / 268,166.54-369,964-172,728.56

Finding the Fourth Proportional to 268,166.54, 369,964 and 172,728.56

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Solution

The fourth proportional to 268,166.54, 369,964 and 172,728.56 is: 238,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,166.54 : 369,964 = 172,728.56 : x
  2. Step 2: Convert to fraction form
    268,166.54/369,964 = 172,728.56/x
  3. Step 3: Cross multiply
    268,166.54x = 369,964 × 172,728.56
  4. Step 4: Simplify right side
    268,166.54x = 63,903,348,971.84
  5. Step 5: Solve for x
    x = 63,903,348,971.84/268,166.54
  6. Step 6: Final answer
    x = 238,297.25

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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.