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Finding the Fourth Proportional to 302,145.88, 453,235.38 and 99,733.72

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Solution

The fourth proportional to 302,145.88, 453,235.38 and 99,733.72 is: 149,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,145.88 : 453,235.38 = 99,733.72 : x
  2. Step 2: Convert to fraction form
    302,145.88/453,235.38 = 99,733.72/x
  3. Step 3: Cross multiply
    302,145.88x = 453,235.38 × 99,733.72
  4. Step 4: Simplify right side
    302,145.88x = 45,202,850,483.01
  5. Step 5: Solve for x
    x = 45,202,850,483.01/302,145.88
  6. Step 6: Final answer
    x = 149,606.05

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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.