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Finding the Fourth Proportional to 545,722.63, 818,543.98 and 171,852.55

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Solution

The fourth proportional to 545,722.63, 818,543.98 and 171,852.55 is: 257,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,722.63 : 818,543.98 = 171,852.55 : x
  2. Step 2: Convert to fraction form
    545,722.63/818,543.98 = 171,852.55/x
  3. Step 3: Cross multiply
    545,722.63x = 818,543.98 × 171,852.55
  4. Step 4: Simplify right side
    545,722.63x = 140,668,870,250.15
  5. Step 5: Solve for x
    x = 140,668,870,250.15/545,722.63
  6. Step 6: Final answer
    x = 257,766.24

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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.