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Finding the Fourth Proportional to 545,694.82, 818,536.47 and 213,267.94

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Solution

The fourth proportional to 545,694.82, 818,536.47 and 213,267.94 is: 319,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,694.82 : 818,536.47 = 213,267.94 : x
  2. Step 2: Convert to fraction form
    545,694.82/818,536.47 = 213,267.94/x
  3. Step 3: Cross multiply
    545,694.82x = 818,536.47 × 213,267.94
  4. Step 4: Simplify right side
    545,694.82x = 174,567,583,925.68
  5. Step 5: Solve for x
    x = 174,567,583,925.68/545,694.82
  6. Step 6: Final answer
    x = 319,899.66

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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.