Home / 268,188.28-401,670.06-128,045.32

Finding the Fourth Proportional to 268,188.28, 401,670.06 and 128,045.32

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Solution

The fourth proportional to 268,188.28, 401,670.06 and 128,045.32 is: 191,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,188.28 : 401,670.06 = 128,045.32 : x
  2. Step 2: Convert to fraction form
    268,188.28/401,670.06 = 128,045.32/x
  3. Step 3: Cross multiply
    268,188.28x = 401,670.06 × 128,045.32
  4. Step 4: Simplify right side
    268,188.28x = 51,431,971,367.12
  5. Step 5: Solve for x
    x = 51,431,971,367.12/268,188.28
  6. Step 6: Final answer
    x = 191,775.61

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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.