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Finding the Fourth Proportional to 176,451.36, 243,630 and 108,559.68

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Solution

The fourth proportional to 176,451.36, 243,630 and 108,559.68 is: 149,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,451.36 : 243,630 = 108,559.68 : x
  2. Step 2: Convert to fraction form
    176,451.36/243,630 = 108,559.68/x
  3. Step 3: Cross multiply
    176,451.36x = 243,630 × 108,559.68
  4. Step 4: Simplify right side
    176,451.36x = 26,448,394,838.40
  5. Step 5: Solve for x
    x = 26,448,394,838.40/176,451.36
  6. Step 6: Final answer
    x = 149,890.57

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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.