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Finding the Fourth Proportional to 315,241.61, 472,866.54 and 104,879.55

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Solution

The fourth proportional to 315,241.61, 472,866.54 and 104,879.55 is: 157,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,241.61 : 472,866.54 = 104,879.55 : x
  2. Step 2: Convert to fraction form
    315,241.61/472,866.54 = 104,879.55/x
  3. Step 3: Cross multiply
    315,241.61x = 472,866.54 × 104,879.55
  4. Step 4: Simplify right side
    315,241.61x = 49,594,029,925.26
  5. Step 5: Solve for x
    x = 49,594,029,925.26/315,241.61
  6. Step 6: Final answer
    x = 157,320.70

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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.