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Finding the Fourth Proportional to 545,343.66, 818,148.12 and 185,538.42

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Solution

The fourth proportional to 545,343.66, 818,148.12 and 185,538.42 is: 278,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,343.66 : 818,148.12 = 185,538.42 : x
  2. Step 2: Convert to fraction form
    545,343.66/818,148.12 = 185,538.42/x
  3. Step 3: Cross multiply
    545,343.66x = 818,148.12 × 185,538.42
  4. Step 4: Simplify right side
    545,343.66x = 151,797,909,510.77
  5. Step 5: Solve for x
    x = 151,797,909,510.77/545,343.66
  6. Step 6: Final answer
    x = 278,352.75

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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.