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Finding the Fourth Proportional to 302,493.60, 453,721.20 and 102,813.60

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Solution

The fourth proportional to 302,493.60, 453,721.20 and 102,813.60 is: 154,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,493.60 : 453,721.20 = 102,813.60 : x
  2. Step 2: Convert to fraction form
    302,493.60/453,721.20 = 102,813.60/x
  3. Step 3: Cross multiply
    302,493.60x = 453,721.20 × 102,813.60
  4. Step 4: Simplify right side
    302,493.60x = 46,648,709,968.32
  5. Step 5: Solve for x
    x = 46,648,709,968.32/302,493.60
  6. Step 6: Final answer
    x = 154,213.87

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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.