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Finding the Fourth Proportional to 302,910.35, 417,999.25 and 166,943.88

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Solution

The fourth proportional to 302,910.35, 417,999.25 and 166,943.88 is: 230,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,910.35 : 417,999.25 = 166,943.88 : x
  2. Step 2: Convert to fraction form
    302,910.35/417,999.25 = 166,943.88/x
  3. Step 3: Cross multiply
    302,910.35x = 417,999.25 × 166,943.88
  4. Step 4: Simplify right side
    302,910.35x = 69,782,416,840.77
  5. Step 5: Solve for x
    x = 69,782,416,840.77/302,910.35
  6. Step 6: Final answer
    x = 230,373.17

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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.