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Finding the Fourth Proportional to 250,089.82, 345,123.89 and 135,368.44

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Solution

The fourth proportional to 250,089.82, 345,123.89 and 135,368.44 is: 186,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,089.82 : 345,123.89 = 135,368.44 : x
  2. Step 2: Convert to fraction form
    250,089.82/345,123.89 = 135,368.44/x
  3. Step 3: Cross multiply
    250,089.82x = 345,123.89 × 135,368.44
  4. Step 4: Simplify right side
    250,089.82x = 46,718,882,071.64
  5. Step 5: Solve for x
    x = 46,718,882,071.64/250,089.82
  6. Step 6: Final answer
    x = 186,808.41

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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.