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Finding the Fourth Proportional to 354,133, 488,703.54 and 195,157

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Solution

The fourth proportional to 354,133, 488,703.54 and 195,157 is: 269,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,133 : 488,703.54 = 195,157 : x
  2. Step 2: Convert to fraction form
    354,133/488,703.54 = 195,157/x
  3. Step 3: Cross multiply
    354,133x = 488,703.54 × 195,157
  4. Step 4: Simplify right side
    354,133x = 95,373,916,755.78
  5. Step 5: Solve for x
    x = 95,373,916,755.78/354,133
  6. Step 6: Final answer
    x = 269,316.66

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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.