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Finding the Fourth Proportional to 272,592.96, 408,666 and 122,788.32

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Solution

The fourth proportional to 272,592.96, 408,666 and 122,788.32 is: 184,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,592.96 : 408,666 = 122,788.32 : x
  2. Step 2: Convert to fraction form
    272,592.96/408,666 = 122,788.32/x
  3. Step 3: Cross multiply
    272,592.96x = 408,666 × 122,788.32
  4. Step 4: Simplify right side
    272,592.96x = 50,179,411,581.12
  5. Step 5: Solve for x
    x = 50,179,411,581.12/272,592.96
  6. Step 6: Final answer
    x = 184,081.83

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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.