Home / 374,290.38-516,519.99-213,145.47

Finding the Fourth Proportional to 374,290.38, 516,519.99 and 213,145.47

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Solution

The fourth proportional to 374,290.38, 516,519.99 and 213,145.47 is: 294,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,290.38 : 516,519.99 = 213,145.47 : x
  2. Step 2: Convert to fraction form
    374,290.38/516,519.99 = 213,145.47/x
  3. Step 3: Cross multiply
    374,290.38x = 516,519.99 × 213,145.47
  4. Step 4: Simplify right side
    374,290.38x = 110,093,896,032.95
  5. Step 5: Solve for x
    x = 110,093,896,032.95/374,290.38
  6. Step 6: Final answer
    x = 294,140.33

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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.