Home / 319,631.88-441,091.56-176,391.96

Finding the Fourth Proportional to 319,631.88, 441,091.56 and 176,391.96

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Solution

The fourth proportional to 319,631.88, 441,091.56 and 176,391.96 is: 243,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,631.88 : 441,091.56 = 176,391.96 : x
  2. Step 2: Convert to fraction form
    319,631.88/441,091.56 = 176,391.96/x
  3. Step 3: Cross multiply
    319,631.88x = 441,091.56 × 176,391.96
  4. Step 4: Simplify right side
    319,631.88x = 77,805,004,807.86
  5. Step 5: Solve for x
    x = 77,805,004,807.86/319,631.88
  6. Step 6: Final answer
    x = 243,420.67

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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.