Home / 336,971.34-505,316.48-137,156.09

Finding the Fourth Proportional to 336,971.34, 505,316.48 and 137,156.09

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Solution

The fourth proportional to 336,971.34, 505,316.48 and 137,156.09 is: 205,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,971.34 : 505,316.48 = 137,156.09 : x
  2. Step 2: Convert to fraction form
    336,971.34/505,316.48 = 137,156.09/x
  3. Step 3: Cross multiply
    336,971.34x = 505,316.48 × 137,156.09
  4. Step 4: Simplify right side
    336,971.34x = 69,307,229,397.00
  5. Step 5: Solve for x
    x = 69,307,229,397.00/336,971.34
  6. Step 6: Final answer
    x = 205,676.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.