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Finding the Fourth Proportional to 503,611.40, 755,198.40 and 166,521.80

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Solution

The fourth proportional to 503,611.40, 755,198.40 and 166,521.80 is: 249,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,611.40 : 755,198.40 = 166,521.80 : x
  2. Step 2: Convert to fraction form
    503,611.40/755,198.40 = 166,521.80/x
  3. Step 3: Cross multiply
    503,611.40x = 755,198.40 × 166,521.80
  4. Step 4: Simplify right side
    503,611.40x = 125,756,996,925.12
  5. Step 5: Solve for x
    x = 125,756,996,925.12/503,611.40
  6. Step 6: Final answer
    x = 249,710.39

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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.