Home / 236,905.28-326,929.32-129,475.28

Finding the Fourth Proportional to 236,905.28, 326,929.32 and 129,475.28

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Solution

The fourth proportional to 236,905.28, 326,929.32 and 129,475.28 is: 178,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,905.28 : 326,929.32 = 129,475.28 : x
  2. Step 2: Convert to fraction form
    236,905.28/326,929.32 = 129,475.28/x
  3. Step 3: Cross multiply
    236,905.28x = 326,929.32 × 129,475.28
  4. Step 4: Simplify right side
    236,905.28x = 42,329,264,599.83
  5. Step 5: Solve for x
    x = 42,329,264,599.83/236,905.28
  6. Step 6: Final answer
    x = 178,675.90

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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.