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Finding the Fourth Proportional to 545,292, 818,012.52 and 190,253.88

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Solution

The fourth proportional to 545,292, 818,012.52 and 190,253.88 is: 285,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,292 : 818,012.52 = 190,253.88 : x
  2. Step 2: Convert to fraction form
    545,292/818,012.52 = 190,253.88/x
  3. Step 3: Cross multiply
    545,292x = 818,012.52 × 190,253.88
  4. Step 4: Simplify right side
    545,292x = 155,630,055,818.58
  5. Step 5: Solve for x
    x = 155,630,055,818.58/545,292
  6. Step 6: Final answer
    x = 285,406.82

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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.