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Finding the Fourth Proportional to 460,187.80, 689,871.30 and 179,639.80

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Solution

The fourth proportional to 460,187.80, 689,871.30 and 179,639.80 is: 269,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,187.80 : 689,871.30 = 179,639.80 : x
  2. Step 2: Convert to fraction form
    460,187.80/689,871.30 = 179,639.80/x
  3. Step 3: Cross multiply
    460,187.80x = 689,871.30 × 179,639.80
  4. Step 4: Simplify right side
    460,187.80x = 123,928,342,357.74
  5. Step 5: Solve for x
    x = 123,928,342,357.74/460,187.80
  6. Step 6: Final answer
    x = 269,299.50

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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.