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Finding the Fourth Proportional to 233,311.80, 349,092.90 and 212,316.60

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Solution

The fourth proportional to 233,311.80, 349,092.90 and 212,316.60 is: 317,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,311.80 : 349,092.90 = 212,316.60 : x
  2. Step 2: Convert to fraction form
    233,311.80/349,092.90 = 212,316.60/x
  3. Step 3: Cross multiply
    233,311.80x = 349,092.90 × 212,316.60
  4. Step 4: Simplify right side
    233,311.80x = 74,118,217,612.14
  5. Step 5: Solve for x
    x = 74,118,217,612.14/233,311.80
  6. Step 6: Final answer
    x = 317,678.82

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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.