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Finding the Fourth Proportional to 250,428, 375,642 and 84,216

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Solution

The fourth proportional to 250,428, 375,642 and 84,216 is: 126,324

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,428 : 375,642 = 84,216 : x
  2. Step 2: Convert to fraction form
    250,428/375,642 = 84,216/x
  3. Step 3: Cross multiply
    250,428x = 375,642 × 84,216
  4. Step 4: Simplify right side
    250,428x = 31,635,066,672
  5. Step 5: Solve for x
    x = 31,635,066,672/250,428
  6. Step 6: Final answer
    x = 126,324

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.