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Finding the Fourth Proportional to 303,373.86, 418,655.61 and 167,407.77

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Solution

The fourth proportional to 303,373.86, 418,655.61 and 167,407.77 is: 231,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,373.86 : 418,655.61 = 167,407.77 : x
  2. Step 2: Convert to fraction form
    303,373.86/418,655.61 = 167,407.77/x
  3. Step 3: Cross multiply
    303,373.86x = 418,655.61 × 167,407.77
  4. Step 4: Simplify right side
    303,373.86x = 70,086,202,068.09
  5. Step 5: Solve for x
    x = 70,086,202,068.09/303,373.86
  6. Step 6: Final answer
    x = 231,022.55

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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.