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Finding the Fourth Proportional to 448,668.72, 672,857.48 and 149,068.86

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Solution

The fourth proportional to 448,668.72, 672,857.48 and 149,068.86 is: 223,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,668.72 : 672,857.48 = 149,068.86 : x
  2. Step 2: Convert to fraction form
    448,668.72/672,857.48 = 149,068.86/x
  3. Step 3: Cross multiply
    448,668.72x = 672,857.48 × 149,068.86
  4. Step 4: Simplify right side
    448,668.72x = 100,302,095,335.53
  5. Step 5: Solve for x
    x = 100,302,095,335.53/448,668.72
  6. Step 6: Final answer
    x = 223,554.91

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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.