Home / 372,327.42-513,815.32-221,395.26

Finding the Fourth Proportional to 372,327.42, 513,815.32 and 221,395.26

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Solution

The fourth proportional to 372,327.42, 513,815.32 and 221,395.26 is: 305,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,327.42 : 513,815.32 = 221,395.26 : x
  2. Step 2: Convert to fraction form
    372,327.42/513,815.32 = 221,395.26/x
  3. Step 3: Cross multiply
    372,327.42x = 513,815.32 × 221,395.26
  4. Step 4: Simplify right side
    372,327.42x = 113,756,276,363.38
  5. Step 5: Solve for x
    x = 113,756,276,363.38/372,327.42
  6. Step 6: Final answer
    x = 305,527.53

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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.