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Finding the Fourth Proportional to 611,427.30, 917,270.55 and 184,928.10

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Solution

The fourth proportional to 611,427.30, 917,270.55 and 184,928.10 is: 277,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,427.30 : 917,270.55 = 184,928.10 : x
  2. Step 2: Convert to fraction form
    611,427.30/917,270.55 = 184,928.10/x
  3. Step 3: Cross multiply
    611,427.30x = 917,270.55 × 184,928.10
  4. Step 4: Simplify right side
    611,427.30x = 169,629,099,997.46
  5. Step 5: Solve for x
    x = 169,629,099,997.46/611,427.30
  6. Step 6: Final answer
    x = 277,431.35

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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.