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Finding the Fourth Proportional to 189,482.38, 261,485.73 and 104,599.50

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Solution

The fourth proportional to 189,482.38, 261,485.73 and 104,599.50 is: 144,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,482.38 : 261,485.73 = 104,599.50 : x
  2. Step 2: Convert to fraction form
    189,482.38/261,485.73 = 104,599.50/x
  3. Step 3: Cross multiply
    189,482.38x = 261,485.73 × 104,599.50
  4. Step 4: Simplify right side
    189,482.38x = 27,351,276,615.14
  5. Step 5: Solve for x
    x = 27,351,276,615.14/189,482.38
  6. Step 6: Final answer
    x = 144,347.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.