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Finding the Fourth Proportional to 306,009.72, 458,838 and 118,802.52

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Solution

The fourth proportional to 306,009.72, 458,838 and 118,802.52 is: 178,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,009.72 : 458,838 = 118,802.52 : x
  2. Step 2: Convert to fraction form
    306,009.72/458,838 = 118,802.52/x
  3. Step 3: Cross multiply
    306,009.72x = 458,838 × 118,802.52
  4. Step 4: Simplify right side
    306,009.72x = 54,511,110,671.76
  5. Step 5: Solve for x
    x = 54,511,110,671.76/306,009.72
  6. Step 6: Final answer
    x = 178,135.23

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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.