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Finding the Fourth Proportional to 303,317.76, 418,579.36 and 169,190.40

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Solution

The fourth proportional to 303,317.76, 418,579.36 and 169,190.40 is: 233,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,317.76 : 418,579.36 = 169,190.40 : x
  2. Step 2: Convert to fraction form
    303,317.76/418,579.36 = 169,190.40/x
  3. Step 3: Cross multiply
    303,317.76x = 418,579.36 × 169,190.40
  4. Step 4: Simplify right side
    303,317.76x = 70,819,609,350.14
  5. Step 5: Solve for x
    x = 70,819,609,350.14/303,317.76
  6. Step 6: Final answer
    x = 233,483.23

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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.