Home / 370,964.07-511,930.43-209,815.67

Finding the Fourth Proportional to 370,964.07, 511,930.43 and 209,815.67

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Solution

The fourth proportional to 370,964.07, 511,930.43 and 209,815.67 is: 289,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,964.07 : 511,930.43 = 209,815.67 : x
  2. Step 2: Convert to fraction form
    370,964.07/511,930.43 = 209,815.67/x
  3. Step 3: Cross multiply
    370,964.07x = 511,930.43 × 209,815.67
  4. Step 4: Simplify right side
    370,964.07x = 107,411,022,555.11
  5. Step 5: Solve for x
    x = 107,411,022,555.11/370,964.07
  6. Step 6: Final answer
    x = 289,545.62

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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.