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Finding the Fourth Proportional to 319,508.58, 440,923.32 and 176,268.58

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Solution

The fourth proportional to 319,508.58, 440,923.32 and 176,268.58 is: 243,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,508.58 : 440,923.32 = 176,268.58 : x
  2. Step 2: Convert to fraction form
    319,508.58/440,923.32 = 176,268.58/x
  3. Step 3: Cross multiply
    319,508.58x = 440,923.32 × 176,268.58
  4. Step 4: Simplify right side
    319,508.58x = 77,720,927,505.29
  5. Step 5: Solve for x
    x = 77,720,927,505.29/319,508.58
  6. Step 6: Final answer
    x = 243,251.46

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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.