Home / 319,315.32-440,645.04-176,081.40

Finding the Fourth Proportional to 319,315.32, 440,645.04 and 176,081.40

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Solution

The fourth proportional to 319,315.32, 440,645.04 and 176,081.40 is: 242,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,315.32 : 440,645.04 = 176,081.40 : x
  2. Step 2: Convert to fraction form
    319,315.32/440,645.04 = 176,081.40/x
  3. Step 3: Cross multiply
    319,315.32x = 440,645.04 × 176,081.40
  4. Step 4: Simplify right side
    319,315.32x = 77,589,395,546.26
  5. Step 5: Solve for x
    x = 77,589,395,546.26/319,315.32
  6. Step 6: Final answer
    x = 242,986.76

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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.