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Finding the Fourth Proportional to 370,871.40, 511,800.30 and 201,105.51

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Solution

The fourth proportional to 370,871.40, 511,800.30 and 201,105.51 is: 277,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,871.40 : 511,800.30 = 201,105.51 : x
  2. Step 2: Convert to fraction form
    370,871.40/511,800.30 = 201,105.51/x
  3. Step 3: Cross multiply
    370,871.40x = 511,800.30 × 201,105.51
  4. Step 4: Simplify right side
    370,871.40x = 102,925,860,349.65
  5. Step 5: Solve for x
    x = 102,925,860,349.65/370,871.40
  6. Step 6: Final answer
    x = 277,524.39

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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.