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Finding the Fourth Proportional to 448,006.61, 671,776.59 and 211,285.73

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Solution

The fourth proportional to 448,006.61, 671,776.59 and 211,285.73 is: 316,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,006.61 : 671,776.59 = 211,285.73 : x
  2. Step 2: Convert to fraction form
    448,006.61/671,776.59 = 211,285.73/x
  3. Step 3: Cross multiply
    448,006.61x = 671,776.59 × 211,285.73
  4. Step 4: Simplify right side
    448,006.61x = 141,936,807,215.06
  5. Step 5: Solve for x
    x = 141,936,807,215.06/448,006.61
  6. Step 6: Final answer
    x = 316,818.56

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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.