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Finding the Fourth Proportional to 210,382.66, 290,352.90 and 118,504.94

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Solution

The fourth proportional to 210,382.66, 290,352.90 and 118,504.94 is: 163,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,382.66 : 290,352.90 = 118,504.94 : x
  2. Step 2: Convert to fraction form
    210,382.66/290,352.90 = 118,504.94/x
  3. Step 3: Cross multiply
    210,382.66x = 290,352.90 × 118,504.94
  4. Step 4: Simplify right side
    210,382.66x = 34,408,252,993.33
  5. Step 5: Solve for x
    x = 34,408,252,993.33/210,382.66
  6. Step 6: Final answer
    x = 163,550.80

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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.