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Finding the Fourth Proportional to 312,005.81, 468,069.39 and 119,866.23

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Solution

The fourth proportional to 312,005.81, 468,069.39 and 119,866.23 is: 179,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,005.81 : 468,069.39 = 119,866.23 : x
  2. Step 2: Convert to fraction form
    312,005.81/468,069.39 = 119,866.23/x
  3. Step 3: Cross multiply
    312,005.81x = 468,069.39 × 119,866.23
  4. Step 4: Simplify right side
    312,005.81x = 56,105,713,157.70
  5. Step 5: Solve for x
    x = 56,105,713,157.70/312,005.81
  6. Step 6: Final answer
    x = 179,822.66

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1.5x scale

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.