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Finding the Fourth Proportional to 303,637.60, 419,009.16 and 167,669.20

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Solution

The fourth proportional to 303,637.60, 419,009.16 and 167,669.20 is: 231,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,637.60 : 419,009.16 = 167,669.20 : x
  2. Step 2: Convert to fraction form
    303,637.60/419,009.16 = 167,669.20/x
  3. Step 3: Cross multiply
    303,637.60x = 419,009.16 × 167,669.20
  4. Step 4: Simplify right side
    303,637.60x = 70,254,930,649.87
  5. Step 5: Solve for x
    x = 70,254,930,649.87/303,637.60
  6. Step 6: Final answer
    x = 231,377.57

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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.