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Finding the Fourth Proportional to 236,804.76, 326,799 and 129,381.48

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Solution

The fourth proportional to 236,804.76, 326,799 and 129,381.48 is: 178,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,804.76 : 326,799 = 129,381.48 : x
  2. Step 2: Convert to fraction form
    236,804.76/326,799 = 129,381.48/x
  3. Step 3: Cross multiply
    236,804.76x = 326,799 × 129,381.48
  4. Step 4: Simplify right side
    236,804.76x = 42,281,738,282.52
  5. Step 5: Solve for x
    x = 42,281,738,282.52/236,804.76
  6. Step 6: Final answer
    x = 178,551.05

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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.