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Finding the Fourth Proportional to 316,294.09, 436,485.57 and 173,054.71

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Solution

The fourth proportional to 316,294.09, 436,485.57 and 173,054.71 is: 238,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,294.09 : 436,485.57 = 173,054.71 : x
  2. Step 2: Convert to fraction form
    316,294.09/436,485.57 = 173,054.71/x
  3. Step 3: Cross multiply
    316,294.09x = 436,485.57 × 173,054.71
  4. Step 4: Simplify right side
    316,294.09x = 75,535,883,735.53
  5. Step 5: Solve for x
    x = 75,535,883,735.53/316,294.09
  6. Step 6: Final answer
    x = 238,815.35

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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.