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Finding the Fourth Proportional to 303,370.76, 418,632.82 and 167,405.78

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Solution

The fourth proportional to 303,370.76, 418,632.82 and 167,405.78 is: 231,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,370.76 : 418,632.82 = 167,405.78 : x
  2. Step 2: Convert to fraction form
    303,370.76/418,632.82 = 167,405.78/x
  3. Step 3: Cross multiply
    303,370.76x = 418,632.82 × 167,405.78
  4. Step 4: Simplify right side
    303,370.76x = 70,081,551,254.02
  5. Step 5: Solve for x
    x = 70,081,551,254.02/303,370.76
  6. Step 6: Final answer
    x = 231,009.58

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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.