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Finding the Fourth Proportional to 315,323.15, 472,703.43 and 115,596.89

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Solution

The fourth proportional to 315,323.15, 472,703.43 and 115,596.89 is: 173,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,323.15 : 472,703.43 = 115,596.89 : x
  2. Step 2: Convert to fraction form
    315,323.15/472,703.43 = 115,596.89/x
  3. Step 3: Cross multiply
    315,323.15x = 472,703.43 × 115,596.89
  4. Step 4: Simplify right side
    315,323.15x = 54,643,046,400.33
  5. Step 5: Solve for x
    x = 54,643,046,400.33/315,323.15
  6. Step 6: Final answer
    x = 173,292.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.