Home / 374,587.44-516,834.72-221,618.40

Finding the Fourth Proportional to 374,587.44, 516,834.72 and 221,618.40

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Solution

The fourth proportional to 374,587.44, 516,834.72 and 221,618.40 is: 305,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,587.44 : 516,834.72 = 221,618.40 : x
  2. Step 2: Convert to fraction form
    374,587.44/516,834.72 = 221,618.40/x
  3. Step 3: Cross multiply
    374,587.44x = 516,834.72 × 221,618.40
  4. Step 4: Simplify right side
    374,587.44x = 114,540,083,710.85
  5. Step 5: Solve for x
    x = 114,540,083,710.85/374,587.44
  6. Step 6: Final answer
    x = 305,776.63

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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.