Home / 370,352.09-511,127.47-209,217.57

Finding the Fourth Proportional to 370,352.09, 511,127.47 and 209,217.57

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Solution

The fourth proportional to 370,352.09, 511,127.47 and 209,217.57 is: 288,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,352.09 : 511,127.47 = 209,217.57 : x
  2. Step 2: Convert to fraction form
    370,352.09/511,127.47 = 209,217.57/x
  3. Step 3: Cross multiply
    370,352.09x = 511,127.47 × 209,217.57
  4. Step 4: Simplify right side
    370,352.09x = 106,936,847,233.65
  5. Step 5: Solve for x
    x = 106,936,847,233.65/370,352.09
  6. Step 6: Final answer
    x = 288,743.74

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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.