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Finding the Fourth Proportional to 312,237, 430,887.06 and 168,998.22

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Solution

The fourth proportional to 312,237, 430,887.06 and 168,998.22 is: 233,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,237 : 430,887.06 = 168,998.22 : x
  2. Step 2: Convert to fraction form
    312,237/430,887.06 = 168,998.22/x
  3. Step 3: Cross multiply
    312,237x = 430,887.06 × 168,998.22
  4. Step 4: Simplify right side
    312,237x = 72,819,146,161.03
  5. Step 5: Solve for x
    x = 72,819,146,161.03/312,237
  6. Step 6: Final answer
    x = 233,217.54

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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.