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Finding the Fourth Proportional to 235,429.32, 324,890.88 and 127,999.32

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Solution

The fourth proportional to 235,429.32, 324,890.88 and 127,999.32 is: 176,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,429.32 : 324,890.88 = 127,999.32 : x
  2. Step 2: Convert to fraction form
    235,429.32/324,890.88 = 127,999.32/x
  3. Step 3: Cross multiply
    235,429.32x = 324,890.88 × 127,999.32
  4. Step 4: Simplify right side
    235,429.32x = 41,585,811,714.20
  5. Step 5: Solve for x
    x = 41,585,811,714.20/235,429.32
  6. Step 6: Final answer
    x = 176,638.20

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1.5x scale

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.