Home / 347,815.10-521,722.65-214,262.30

Finding the Fourth Proportional to 347,815.10, 521,722.65 and 214,262.30

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Solution

The fourth proportional to 347,815.10, 521,722.65 and 214,262.30 is: 321,393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,815.10 : 521,722.65 = 214,262.30 : x
  2. Step 2: Convert to fraction form
    347,815.10/521,722.65 = 214,262.30/x
  3. Step 3: Cross multiply
    347,815.10x = 521,722.65 × 214,262.30
  4. Step 4: Simplify right side
    347,815.10x = 111,785,494,951.10
  5. Step 5: Solve for x
    x = 111,785,494,951.10/347,815.10
  6. Step 6: Final answer
    x = 321,393.45

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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.