Home / 306,226.40-422,570.48-168,415.03

Finding the Fourth Proportional to 306,226.40, 422,570.48 and 168,415.03

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Solution

The fourth proportional to 306,226.40, 422,570.48 and 168,415.03 is: 232,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,226.40 : 422,570.48 = 168,415.03 : x
  2. Step 2: Convert to fraction form
    306,226.40/422,570.48 = 168,415.03/x
  3. Step 3: Cross multiply
    306,226.40x = 422,570.48 × 168,415.03
  4. Step 4: Simplify right side
    306,226.40x = 71,167,220,066.31
  5. Step 5: Solve for x
    x = 71,167,220,066.31/306,226.40
  6. Step 6: Final answer
    x = 232,400.67

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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.