Home / 415,235.73-623,241.06-212,983.68

Finding the Fourth Proportional to 415,235.73, 623,241.06 and 212,983.68

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Solution

The fourth proportional to 415,235.73, 623,241.06 and 212,983.68 is: 319,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,235.73 : 623,241.06 = 212,983.68 : x
  2. Step 2: Convert to fraction form
    415,235.73/623,241.06 = 212,983.68/x
  3. Step 3: Cross multiply
    415,235.73x = 623,241.06 × 212,983.68
  4. Step 4: Simplify right side
    415,235.73x = 132,740,173,117.65
  5. Step 5: Solve for x
    x = 132,740,173,117.65/415,235.73
  6. Step 6: Final answer
    x = 319,674.26

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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.