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Finding the Fourth Proportional to 302,080.08, 453,090.80 and 91,719.84

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Solution

The fourth proportional to 302,080.08, 453,090.80 and 91,719.84 is: 137,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,080.08 : 453,090.80 = 91,719.84 : x
  2. Step 2: Convert to fraction form
    302,080.08/453,090.80 = 91,719.84/x
  3. Step 3: Cross multiply
    302,080.08x = 453,090.80 × 91,719.84
  4. Step 4: Simplify right side
    302,080.08x = 41,557,415,681.47
  5. Step 5: Solve for x
    x = 41,557,415,681.47/302,080.08
  6. Step 6: Final answer
    x = 137,570.86

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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.