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Finding the Fourth Proportional to 189,374.52, 261,325.80 and 104,491.38

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Solution

The fourth proportional to 189,374.52, 261,325.80 and 104,491.38 is: 144,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,374.52 : 261,325.80 = 104,491.38 : x
  2. Step 2: Convert to fraction form
    189,374.52/261,325.80 = 104,491.38/x
  3. Step 3: Cross multiply
    189,374.52x = 261,325.80 × 104,491.38
  4. Step 4: Simplify right side
    189,374.52x = 27,306,293,471.60
  5. Step 5: Solve for x
    x = 27,306,293,471.60/189,374.52
  6. Step 6: Final answer
    x = 144,192.01

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1.5x scale

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.