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Finding the Fourth Proportional to 545,701.17, 818,352.19 and 208,575.12

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Solution

The fourth proportional to 545,701.17, 818,352.19 and 208,575.12 is: 312,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,701.17 : 818,352.19 = 208,575.12 : x
  2. Step 2: Convert to fraction form
    545,701.17/818,352.19 = 208,575.12/x
  3. Step 3: Cross multiply
    545,701.17x = 818,352.19 × 208,575.12
  4. Step 4: Simplify right side
    545,701.17x = 170,687,906,231.51
  5. Step 5: Solve for x
    x = 170,687,906,231.51/545,701.17
  6. Step 6: Final answer
    x = 312,786.40

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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.