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Finding the Fourth Proportional to 303,116.10, 418,290.63 and 167,155.79

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Solution

The fourth proportional to 303,116.10, 418,290.63 and 167,155.79 is: 230,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,116.10 : 418,290.63 = 167,155.79 : x
  2. Step 2: Convert to fraction form
    303,116.10/418,290.63 = 167,155.79/x
  3. Step 3: Cross multiply
    303,116.10x = 418,290.63 × 167,155.79
  4. Step 4: Simplify right side
    303,116.10x = 69,919,698,615.79
  5. Step 5: Solve for x
    x = 69,919,698,615.79/303,116.10
  6. Step 6: Final answer
    x = 230,669.70

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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.