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Finding the Fourth Proportional to 370,328.80, 511,051.20 and 200,559.04

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Solution

The fourth proportional to 370,328.80, 511,051.20 and 200,559.04 is: 276,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,328.80 : 511,051.20 = 200,559.04 : x
  2. Step 2: Convert to fraction form
    370,328.80/511,051.20 = 200,559.04/x
  3. Step 3: Cross multiply
    370,328.80x = 511,051.20 × 200,559.04
  4. Step 4: Simplify right side
    370,328.80x = 102,495,938,062.85
  5. Step 5: Solve for x
    x = 102,495,938,062.85/370,328.80
  6. Step 6: Final answer
    x = 276,770.10

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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.