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Finding the Fourth Proportional to 370,875.80, 511,808.60 and 201,109.92

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Solution

The fourth proportional to 370,875.80, 511,808.60 and 201,109.92 is: 277,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,875.80 : 511,808.60 = 201,109.92 : x
  2. Step 2: Convert to fraction form
    370,875.80/511,808.60 = 201,109.92/x
  3. Step 3: Cross multiply
    370,875.80x = 511,808.60 × 201,109.92
  4. Step 4: Simplify right side
    370,875.80x = 102,929,786,601.31
  5. Step 5: Solve for x
    x = 102,929,786,601.31/370,875.80
  6. Step 6: Final answer
    x = 277,531.69

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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.