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Finding the Fourth Proportional to 303,668.70, 455,513.85 and 93,306.30

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Solution

The fourth proportional to 303,668.70, 455,513.85 and 93,306.30 is: 139,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,668.70 : 455,513.85 = 93,306.30 : x
  2. Step 2: Convert to fraction form
    303,668.70/455,513.85 = 93,306.30/x
  3. Step 3: Cross multiply
    303,668.70x = 455,513.85 × 93,306.30
  4. Step 4: Simplify right side
    303,668.70x = 42,502,311,942.26
  5. Step 5: Solve for x
    x = 42,502,311,942.26/303,668.70
  6. Step 6: Final answer
    x = 139,962.77

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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.