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Finding the Fourth Proportional to 370,486.23, 511,271.50 and 200,720.36

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Solution

The fourth proportional to 370,486.23, 511,271.50 and 200,720.36 is: 276,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,486.23 : 511,271.50 = 200,720.36 : x
  2. Step 2: Convert to fraction form
    370,486.23/511,271.50 = 200,720.36/x
  3. Step 3: Cross multiply
    370,486.23x = 511,271.50 × 200,720.36
  4. Step 4: Simplify right side
    370,486.23x = 102,622,596,981.38
  5. Step 5: Solve for x
    x = 102,622,596,981.38/370,486.23
  6. Step 6: Final answer
    x = 276,994.36

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1.5x scale

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.