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Finding the Fourth Proportional to 302,079.66, 453,090.24 and 91,719.42

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Solution

The fourth proportional to 302,079.66, 453,090.24 and 91,719.42 is: 137,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,079.66 : 453,090.24 = 91,719.42 : x
  2. Step 2: Convert to fraction form
    302,079.66/453,090.24 = 91,719.42/x
  3. Step 3: Cross multiply
    302,079.66x = 453,090.24 × 91,719.42
  4. Step 4: Simplify right side
    302,079.66x = 41,557,174,020.46
  5. Step 5: Solve for x
    x = 41,557,174,020.46/302,079.66
  6. Step 6: Final answer
    x = 137,570.25

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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.