Home / 370,830.24-511,724.25-209,719.08

Finding the Fourth Proportional to 370,830.24, 511,724.25 and 209,719.08

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Solution

The fourth proportional to 370,830.24, 511,724.25 and 209,719.08 is: 289,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,830.24 : 511,724.25 = 209,719.08 : x
  2. Step 2: Convert to fraction form
    370,830.24/511,724.25 = 209,719.08/x
  3. Step 3: Cross multiply
    370,830.24x = 511,724.25 × 209,719.08
  4. Step 4: Simplify right side
    370,830.24x = 107,318,338,923.69
  5. Step 5: Solve for x
    x = 107,318,338,923.69/370,830.24
  6. Step 6: Final answer
    x = 289,400.18

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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.