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Finding the Fourth Proportional to 388,898, 536,679.60 and 210,050

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Solution

The fourth proportional to 388,898, 536,679.60 and 210,050 is: 289,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,898 : 536,679.60 = 210,050 : x
  2. Step 2: Convert to fraction form
    388,898/536,679.60 = 210,050/x
  3. Step 3: Cross multiply
    388,898x = 536,679.60 × 210,050
  4. Step 4: Simplify right side
    388,898x = 112,729,549,980
  5. Step 5: Solve for x
    x = 112,729,549,980/388,898
  6. Step 6: Final answer
    x = 289,869.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.