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Finding the Fourth Proportional to 302,900.65, 418,005.77 and 166,939.58

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Solution

The fourth proportional to 302,900.65, 418,005.77 and 166,939.58 is: 230,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,900.65 : 418,005.77 = 166,939.58 : x
  2. Step 2: Convert to fraction form
    302,900.65/418,005.77 = 166,939.58/x
  3. Step 3: Cross multiply
    302,900.65x = 418,005.77 × 166,939.58
  4. Step 4: Simplify right side
    302,900.65x = 69,781,707,891.69
  5. Step 5: Solve for x
    x = 69,781,707,891.69/302,900.65
  6. Step 6: Final answer
    x = 230,378.21

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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.