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Finding the Fourth Proportional to 218,216.56, 299,833.82 and 173,426.80

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Solution

The fourth proportional to 218,216.56, 299,833.82 and 173,426.80 is: 238,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,216.56 : 299,833.82 = 173,426.80 : x
  2. Step 2: Convert to fraction form
    218,216.56/299,833.82 = 173,426.80/x
  3. Step 3: Cross multiply
    218,216.56x = 299,833.82 × 173,426.80
  4. Step 4: Simplify right side
    218,216.56x = 51,999,219,934.38
  5. Step 5: Solve for x
    x = 51,999,219,934.38/218,216.56
  6. Step 6: Final answer
    x = 238,291.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.