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Finding the Fourth Proportional to 189,038.59, 260,870.41 and 108,464.31

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Solution

The fourth proportional to 189,038.59, 260,870.41 and 108,464.31 is: 149,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,038.59 : 260,870.41 = 108,464.31 : x
  2. Step 2: Convert to fraction form
    189,038.59/260,870.41 = 108,464.31/x
  3. Step 3: Cross multiply
    189,038.59x = 260,870.41 × 108,464.31
  4. Step 4: Simplify right side
    189,038.59x = 28,295,129,020.07
  5. Step 5: Solve for x
    x = 28,295,129,020.07/189,038.59
  6. Step 6: Final answer
    x = 149,679.12

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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.