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Finding the Fourth Proportional to 302,679.70, 453,695.55 and 102,814.90

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Solution

The fourth proportional to 302,679.70, 453,695.55 and 102,814.90 is: 154,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,679.70 : 453,695.55 = 102,814.90 : x
  2. Step 2: Convert to fraction form
    302,679.70/453,695.55 = 102,814.90/x
  3. Step 3: Cross multiply
    302,679.70x = 453,695.55 × 102,814.90
  4. Step 4: Simplify right side
    302,679.70x = 46,646,662,603.70
  5. Step 5: Solve for x
    x = 46,646,662,603.70/302,679.70
  6. Step 6: Final answer
    x = 154,112.29

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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.