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Finding the Fourth Proportional to 303,971.61, 419,502.54 and 168,002.63

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Solution

The fourth proportional to 303,971.61, 419,502.54 and 168,002.63 is: 231,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,971.61 : 419,502.54 = 168,002.63 : x
  2. Step 2: Convert to fraction form
    303,971.61/419,502.54 = 168,002.63/x
  3. Step 3: Cross multiply
    303,971.61x = 419,502.54 × 168,002.63
  4. Step 4: Simplify right side
    303,971.61x = 70,477,529,171.67
  5. Step 5: Solve for x
    x = 70,477,529,171.67/303,971.61
  6. Step 6: Final answer
    x = 231,855.63

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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.