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Finding the Fourth Proportional to 143,396, 215,094 and 60,290

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Solution

The fourth proportional to 143,396, 215,094 and 60,290 is: 90,435

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,396 : 215,094 = 60,290 : x
  2. Step 2: Convert to fraction form
    143,396/215,094 = 60,290/x
  3. Step 3: Cross multiply
    143,396x = 215,094 × 60,290
  4. Step 4: Simplify right side
    143,396x = 12,968,017,260
  5. Step 5: Solve for x
    x = 12,968,017,260/143,396
  6. Step 6: Final answer
    x = 90,435

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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.