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Finding the Fourth Proportional to 370,745.51, 511,625.87 and 209,632.25

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Solution

The fourth proportional to 370,745.51, 511,625.87 and 209,632.25 is: 289,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,745.51 : 511,625.87 = 209,632.25 : x
  2. Step 2: Convert to fraction form
    370,745.51/511,625.87 = 209,632.25/x
  3. Step 3: Cross multiply
    370,745.51x = 511,625.87 × 209,632.25
  4. Step 4: Simplify right side
    370,745.51x = 107,253,283,303.33
  5. Step 5: Solve for x
    x = 107,253,283,303.33/370,745.51
  6. Step 6: Final answer
    x = 289,290.85

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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.