Home / 347,835.88-521,728.30-111,115

Finding the Fourth Proportional to 347,835.88, 521,728.30 and 111,115

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Solution

The fourth proportional to 347,835.88, 521,728.30 and 111,115 is: 166,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,835.88 : 521,728.30 = 111,115 : x
  2. Step 2: Convert to fraction form
    347,835.88/521,728.30 = 111,115/x
  3. Step 3: Cross multiply
    347,835.88x = 521,728.30 × 111,115
  4. Step 4: Simplify right side
    347,835.88x = 57,971,840,054.50
  5. Step 5: Solve for x
    x = 57,971,840,054.50/347,835.88
  6. Step 6: Final answer
    x = 166,664.35

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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.