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Finding the Fourth Proportional to 315,298.85, 473,019.55 and 104,945.09

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Solution

The fourth proportional to 315,298.85, 473,019.55 and 104,945.09 is: 157,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,298.85 : 473,019.55 = 104,945.09 : x
  2. Step 2: Convert to fraction form
    315,298.85/473,019.55 = 104,945.09/x
  3. Step 3: Cross multiply
    315,298.85x = 473,019.55 × 104,945.09
  4. Step 4: Simplify right side
    315,298.85x = 49,641,076,619.05
  5. Step 5: Solve for x
    x = 49,641,076,619.05/315,298.85
  6. Step 6: Final answer
    x = 157,441.35

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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.