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Finding the Fourth Proportional to 303,457.57, 418,771.45 and 169,321.57

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Solution

The fourth proportional to 303,457.57, 418,771.45 and 169,321.57 is: 233,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,457.57 : 418,771.45 = 169,321.57 : x
  2. Step 2: Convert to fraction form
    303,457.57/418,771.45 = 169,321.57/x
  3. Step 3: Cross multiply
    303,457.57x = 418,771.45 × 169,321.57
  4. Step 4: Simplify right side
    303,457.57x = 70,907,039,013.37
  5. Step 5: Solve for x
    x = 70,907,039,013.37/303,457.57
  6. Step 6: Final answer
    x = 233,663.77

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Double scale
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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.