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Finding the Fourth Proportional to 371,108.81, 511,814.27 and 258,201.29

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Solution

The fourth proportional to 371,108.81, 511,814.27 and 258,201.29 is: 356,098.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,108.81 : 511,814.27 = 258,201.29 : x
  2. Step 2: Convert to fraction form
    371,108.81/511,814.27 = 258,201.29/x
  3. Step 3: Cross multiply
    371,108.81x = 511,814.27 × 258,201.29
  4. Step 4: Simplify right side
    371,108.81x = 132,151,102,840.84
  5. Step 5: Solve for x
    x = 132,151,102,840.84/371,108.81
  6. Step 6: Final answer
    x = 356,098.00

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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.