Home / 370,968.32-511,947.87-209,820.22

Finding the Fourth Proportional to 370,968.32, 511,947.87 and 209,820.22

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Solution

The fourth proportional to 370,968.32, 511,947.87 and 209,820.22 is: 289,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,968.32 : 511,947.87 = 209,820.22 : x
  2. Step 2: Convert to fraction form
    370,968.32/511,947.87 = 209,820.22/x
  3. Step 3: Cross multiply
    370,968.32x = 511,947.87 × 209,820.22
  4. Step 4: Simplify right side
    370,968.32x = 107,417,014,711.93
  5. Step 5: Solve for x
    x = 107,417,014,711.93/370,968.32
  6. Step 6: Final answer
    x = 289,558.46

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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.