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Finding the Fourth Proportional to 305,598.93, 421,705.41 and 169,622.18

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Solution

The fourth proportional to 305,598.93, 421,705.41 and 169,622.18 is: 234,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,598.93 : 421,705.41 = 169,622.18 : x
  2. Step 2: Convert to fraction form
    305,598.93/421,705.41 = 169,622.18/x
  3. Step 3: Cross multiply
    305,598.93x = 421,705.41 × 169,622.18
  4. Step 4: Simplify right side
    305,598.93x = 71,530,590,961.99
  5. Step 5: Solve for x
    x = 71,530,590,961.99/305,598.93
  6. Step 6: Final answer
    x = 234,066.89

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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.