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Finding the Fourth Proportional to 302,028.81, 453,045.90 and 91,666.71

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Solution

The fourth proportional to 302,028.81, 453,045.90 and 91,666.71 is: 137,500.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,028.81 : 453,045.90 = 91,666.71 : x
  2. Step 2: Convert to fraction form
    302,028.81/453,045.90 = 91,666.71/x
  3. Step 3: Cross multiply
    302,028.81x = 453,045.90 × 91,666.71
  4. Step 4: Simplify right side
    302,028.81x = 41,529,227,131.99
  5. Step 5: Solve for x
    x = 41,529,227,131.99/302,028.81
  6. Step 6: Final answer
    x = 137,500.88

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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.