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Finding the Fourth Proportional to 303,395.14, 418,682.36 and 167,430.34

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Solution

The fourth proportional to 303,395.14, 418,682.36 and 167,430.34 is: 231,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,395.14 : 418,682.36 = 167,430.34 : x
  2. Step 2: Convert to fraction form
    303,395.14/418,682.36 = 167,430.34/x
  3. Step 3: Cross multiply
    303,395.14x = 418,682.36 × 167,430.34
  4. Step 4: Simplify right side
    303,395.14x = 70,100,129,886.80
  5. Step 5: Solve for x
    x = 70,100,129,886.80/303,395.14
  6. Step 6: Final answer
    x = 231,052.25

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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.