Home / 319,376.96-440,743.38-176,142.50

Finding the Fourth Proportional to 319,376.96, 440,743.38 and 176,142.50

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Solution

The fourth proportional to 319,376.96, 440,743.38 and 176,142.50 is: 243,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,376.96 : 440,743.38 = 176,142.50 : x
  2. Step 2: Convert to fraction form
    319,376.96/440,743.38 = 176,142.50/x
  3. Step 3: Cross multiply
    319,376.96x = 440,743.38 × 176,142.50
  4. Step 4: Simplify right side
    319,376.96x = 77,633,640,811.65
  5. Step 5: Solve for x
    x = 77,633,640,811.65/319,376.96
  6. Step 6: Final answer
    x = 243,078.40

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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.