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Finding the Fourth Proportional to 545,656.40, 818,095.80 and 208,566.80

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Solution

The fourth proportional to 545,656.40, 818,095.80 and 208,566.80 is: 312,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,656.40 : 818,095.80 = 208,566.80 : x
  2. Step 2: Convert to fraction form
    545,656.40/818,095.80 = 208,566.80/x
  3. Step 3: Cross multiply
    545,656.40x = 818,095.80 × 208,566.80
  4. Step 4: Simplify right side
    545,656.40x = 170,627,623,099.44
  5. Step 5: Solve for x
    x = 170,627,623,099.44/545,656.40
  6. Step 6: Final answer
    x = 312,701.59

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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.