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Finding the Fourth Proportional to 302,020.40, 416,763.33 and 177,821.63

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Solution

The fourth proportional to 302,020.40, 416,763.33 and 177,821.63 is: 245,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,020.40 : 416,763.33 = 177,821.63 : x
  2. Step 2: Convert to fraction form
    302,020.40/416,763.33 = 177,821.63/x
  3. Step 3: Cross multiply
    302,020.40x = 416,763.33 × 177,821.63
  4. Step 4: Simplify right side
    302,020.40x = 74,109,534,664.83
  5. Step 5: Solve for x
    x = 74,109,534,664.83/302,020.40
  6. Step 6: Final answer
    x = 245,379.23

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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.