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Finding the Fourth Proportional to 205,312, 308,090.88 and 88,576

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Solution

The fourth proportional to 205,312, 308,090.88 and 88,576 is: 132,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,312 : 308,090.88 = 88,576 : x
  2. Step 2: Convert to fraction form
    205,312/308,090.88 = 88,576/x
  3. Step 3: Cross multiply
    205,312x = 308,090.88 × 88,576
  4. Step 4: Simplify right side
    205,312x = 27,289,457,786.88
  5. Step 5: Solve for x
    x = 27,289,457,786.88/205,312
  6. Step 6: Final answer
    x = 132,917.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.