Home / 236,828.56-355,237.78-76,904.32

Finding the Fourth Proportional to 236,828.56, 355,237.78 and 76,904.32

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Solution

The fourth proportional to 236,828.56, 355,237.78 and 76,904.32 is: 115,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,828.56 : 355,237.78 = 76,904.32 : x
  2. Step 2: Convert to fraction form
    236,828.56/355,237.78 = 76,904.32/x
  3. Step 3: Cross multiply
    236,828.56x = 355,237.78 × 76,904.32
  4. Step 4: Simplify right side
    236,828.56x = 27,319,319,909.21
  5. Step 5: Solve for x
    x = 27,319,319,909.21/236,828.56
  6. Step 6: Final answer
    x = 115,354.84

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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.