Home / 236,828.64-326,813.28-129,393.60

Finding the Fourth Proportional to 236,828.64, 326,813.28 and 129,393.60

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Solution

The fourth proportional to 236,828.64, 326,813.28 and 129,393.60 is: 178,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,828.64 : 326,813.28 = 129,393.60 : x
  2. Step 2: Convert to fraction form
    236,828.64/326,813.28 = 129,393.60/x
  3. Step 3: Cross multiply
    236,828.64x = 326,813.28 × 129,393.60
  4. Step 4: Simplify right side
    236,828.64x = 42,287,546,827.01
  5. Step 5: Solve for x
    x = 42,287,546,827.01/236,828.64
  6. Step 6: Final answer
    x = 178,557.57

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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.