Home / 316,631.22-436,937.95-173,388.79

Finding the Fourth Proportional to 316,631.22, 436,937.95 and 173,388.79

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Solution

The fourth proportional to 316,631.22, 436,937.95 and 173,388.79 is: 239,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,631.22 : 436,937.95 = 173,388.79 : x
  2. Step 2: Convert to fraction form
    316,631.22/436,937.95 = 173,388.79/x
  3. Step 3: Cross multiply
    316,631.22x = 436,937.95 × 173,388.79
  4. Step 4: Simplify right side
    316,631.22x = 75,760,142,455.58
  5. Step 5: Solve for x
    x = 75,760,142,455.58/316,631.22
  6. Step 6: Final answer
    x = 239,269.34

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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.