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Finding the Fourth Proportional to 448,018.86, 671,794.97 and 211,297.98

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Solution

The fourth proportional to 448,018.86, 671,794.97 and 211,297.98 is: 316,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,018.86 : 671,794.97 = 211,297.98 : x
  2. Step 2: Convert to fraction form
    448,018.86/671,794.97 = 211,297.98/x
  3. Step 3: Cross multiply
    448,018.86x = 671,794.97 × 211,297.98
  4. Step 4: Simplify right side
    448,018.86x = 141,948,920,135.16
  5. Step 5: Solve for x
    x = 141,948,920,135.16/448,018.86
  6. Step 6: Final answer
    x = 316,836.93

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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.