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Finding the Fourth Proportional to 315,114.93, 434,864.03 and 171,879.93

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Solution

The fourth proportional to 315,114.93, 434,864.03 and 171,879.93 is: 237,197.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,114.93 : 434,864.03 = 171,879.93 : x
  2. Step 2: Convert to fraction form
    315,114.93/434,864.03 = 171,879.93/x
  3. Step 3: Cross multiply
    315,114.93x = 434,864.03 × 171,879.93
  4. Step 4: Simplify right side
    315,114.93x = 74,744,398,176.52
  5. Step 5: Solve for x
    x = 74,744,398,176.52/315,114.93
  6. Step 6: Final answer
    x = 237,197.26

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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.