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Finding the Fourth Proportional to 305,991.72, 458,005.32 and 163,480.86

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Solution

The fourth proportional to 305,991.72, 458,005.32 and 163,480.86 is: 244,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,991.72 : 458,005.32 = 163,480.86 : x
  2. Step 2: Convert to fraction form
    305,991.72/458,005.32 = 163,480.86/x
  3. Step 3: Cross multiply
    305,991.72x = 458,005.32 × 163,480.86
  4. Step 4: Simplify right side
    305,991.72x = 74,875,103,598.18
  5. Step 5: Solve for x
    x = 74,875,103,598.18/305,991.72
  6. Step 6: Final answer
    x = 244,696.50

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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.