Home / 370,334.28-511,102.89-209,199.72

Finding the Fourth Proportional to 370,334.28, 511,102.89 and 209,199.72

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Solution

The fourth proportional to 370,334.28, 511,102.89 and 209,199.72 is: 288,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,334.28 : 511,102.89 = 209,199.72 : x
  2. Step 2: Convert to fraction form
    370,334.28/511,102.89 = 209,199.72/x
  3. Step 3: Cross multiply
    370,334.28x = 511,102.89 × 209,199.72
  4. Step 4: Simplify right side
    370,334.28x = 106,922,581,479.19
  5. Step 5: Solve for x
    x = 106,922,581,479.19/370,334.28
  6. Step 6: Final answer
    x = 288,719.10

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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.