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Finding the Fourth Proportional to 228,368.64, 342,605.12 and 123,185.28

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Solution

The fourth proportional to 228,368.64, 342,605.12 and 123,185.28 is: 184,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,368.64 : 342,605.12 = 123,185.28 : x
  2. Step 2: Convert to fraction form
    228,368.64/342,605.12 = 123,185.28/x
  3. Step 3: Cross multiply
    228,368.64x = 342,605.12 × 123,185.28
  4. Step 4: Simplify right side
    228,368.64x = 42,203,907,636.63
  5. Step 5: Solve for x
    x = 42,203,907,636.63/228,368.64
  6. Step 6: Final answer
    x = 184,806.06

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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.