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Finding the Fourth Proportional to 386,939.18, 533,950.02 and 214,848.30

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Solution

The fourth proportional to 386,939.18, 533,950.02 and 214,848.30 is: 296,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,939.18 : 533,950.02 = 214,848.30 : x
  2. Step 2: Convert to fraction form
    386,939.18/533,950.02 = 214,848.30/x
  3. Step 3: Cross multiply
    386,939.18x = 533,950.02 × 214,848.30
  4. Step 4: Simplify right side
    386,939.18x = 114,718,254,081.97
  5. Step 5: Solve for x
    x = 114,718,254,081.97/386,939.18
  6. Step 6: Final answer
    x = 296,476.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.