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Finding the Fourth Proportional to 306,041.53, 422,347.58 and 170,081.22

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Solution

The fourth proportional to 306,041.53, 422,347.58 and 170,081.22 is: 234,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,041.53 : 422,347.58 = 170,081.22 : x
  2. Step 2: Convert to fraction form
    306,041.53/422,347.58 = 170,081.22/x
  3. Step 3: Cross multiply
    306,041.53x = 422,347.58 × 170,081.22
  4. Step 4: Simplify right side
    306,041.53x = 71,833,391,670.45
  5. Step 5: Solve for x
    x = 71,833,391,670.45/306,041.53
  6. Step 6: Final answer
    x = 234,717.79

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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.