Home / 371,931.80-513,397.50-221,027

Finding the Fourth Proportional to 371,931.80, 513,397.50 and 221,027

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Solution

The fourth proportional to 371,931.80, 513,397.50 and 221,027 is: 305,095.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,931.80 : 513,397.50 = 221,027 : x
  2. Step 2: Convert to fraction form
    371,931.80/513,397.50 = 221,027/x
  3. Step 3: Cross multiply
    371,931.80x = 513,397.50 × 221,027
  4. Step 4: Simplify right side
    371,931.80x = 113,474,709,232.50
  5. Step 5: Solve for x
    x = 113,474,709,232.50/371,931.80
  6. Step 6: Final answer
    x = 305,095.48

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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.