Home / 396,120.45-546,716.09-235,064.31

Finding the Fourth Proportional to 396,120.45, 546,716.09 and 235,064.31

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Solution

The fourth proportional to 396,120.45, 546,716.09 and 235,064.31 is: 324,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,120.45 : 546,716.09 = 235,064.31 : x
  2. Step 2: Convert to fraction form
    396,120.45/546,716.09 = 235,064.31/x
  3. Step 3: Cross multiply
    396,120.45x = 546,716.09 × 235,064.31
  4. Step 4: Simplify right side
    396,120.45x = 128,513,440,461.75
  5. Step 5: Solve for x
    x = 128,513,440,461.75/396,120.45
  6. Step 6: Final answer
    x = 324,430.21

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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.