Home / 396,837.36-547,645.23-215,547.21

Finding the Fourth Proportional to 396,837.36, 547,645.23 and 215,547.21

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Solution

The fourth proportional to 396,837.36, 547,645.23 and 215,547.21 is: 297,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,837.36 : 547,645.23 = 215,547.21 : x
  2. Step 2: Convert to fraction form
    396,837.36/547,645.23 = 215,547.21/x
  3. Step 3: Cross multiply
    396,837.36x = 547,645.23 × 215,547.21
  4. Step 4: Simplify right side
    396,837.36x = 118,043,401,396.31
  5. Step 5: Solve for x
    x = 118,043,401,396.31/396,837.36
  6. Step 6: Final answer
    x = 297,460.40

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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.