Home / 339,931.06-469,141.60-212,647.66

Finding the Fourth Proportional to 339,931.06, 469,141.60 and 212,647.66

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Solution

The fourth proportional to 339,931.06, 469,141.60 and 212,647.66 is: 293,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,931.06 : 469,141.60 = 212,647.66 : x
  2. Step 2: Convert to fraction form
    339,931.06/469,141.60 = 212,647.66/x
  3. Step 3: Cross multiply
    339,931.06x = 469,141.60 × 212,647.66
  4. Step 4: Simplify right side
    339,931.06x = 99,761,863,448.66
  5. Step 5: Solve for x
    x = 99,761,863,448.66/339,931.06
  6. Step 6: Final answer
    x = 293,476.75

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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.