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Finding the Fourth Proportional to 303,305.50, 418,561.59 and 169,169.50

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Solution

The fourth proportional to 303,305.50, 418,561.59 and 169,169.50 is: 233,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,305.50 : 418,561.59 = 169,169.50 : x
  2. Step 2: Convert to fraction form
    303,305.50/418,561.59 = 169,169.50/x
  3. Step 3: Cross multiply
    303,305.50x = 418,561.59 × 169,169.50
  4. Step 4: Simplify right side
    303,305.50x = 70,807,854,899.51
  5. Step 5: Solve for x
    x = 70,807,854,899.51/303,305.50
  6. Step 6: Final answer
    x = 233,453.91

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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.