Home / 370,486.10-511,271.33-200,720.23

Finding the Fourth Proportional to 370,486.10, 511,271.33 and 200,720.23

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Solution

The fourth proportional to 370,486.10, 511,271.33 and 200,720.23 is: 276,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,486.10 : 511,271.33 = 200,720.23 : x
  2. Step 2: Convert to fraction form
    370,486.10/511,271.33 = 200,720.23/x
  3. Step 3: Cross multiply
    370,486.10x = 511,271.33 × 200,720.23
  4. Step 4: Simplify right side
    370,486.10x = 102,622,496,668.23
  5. Step 5: Solve for x
    x = 102,622,496,668.23/370,486.10
  6. Step 6: Final answer
    x = 276,994.19

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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.