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Finding the Fourth Proportional to 235,308.77, 324,728.15 and 127,878.80

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Solution

The fourth proportional to 235,308.77, 324,728.15 and 127,878.80 is: 176,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,308.77 : 324,728.15 = 127,878.80 : x
  2. Step 2: Convert to fraction form
    235,308.77/324,728.15 = 127,878.80/x
  3. Step 3: Cross multiply
    235,308.77x = 324,728.15 × 127,878.80
  4. Step 4: Simplify right side
    235,308.77x = 41,525,843,885.19
  5. Step 5: Solve for x
    x = 41,525,843,885.19/235,308.77
  6. Step 6: Final answer
    x = 176,473.85

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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.