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Finding the Fourth Proportional to 316,999.63, 437,459.59 and 173,760.65

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Solution

The fourth proportional to 316,999.63, 437,459.59 and 173,760.65 is: 239,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,999.63 : 437,459.59 = 173,760.65 : x
  2. Step 2: Convert to fraction form
    316,999.63/437,459.59 = 173,760.65/x
  3. Step 3: Cross multiply
    316,999.63x = 437,459.59 × 173,760.65
  4. Step 4: Simplify right side
    316,999.63x = 76,013,259,651.03
  5. Step 5: Solve for x
    x = 76,013,259,651.03/316,999.63
  6. Step 6: Final answer
    x = 239,789.75

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1.5x scale

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.