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Finding the Fourth Proportional to 437,508.74, 656,283.87 and 212,601.26

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Solution

The fourth proportional to 437,508.74, 656,283.87 and 212,601.26 is: 318,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,508.74 : 656,283.87 = 212,601.26 : x
  2. Step 2: Convert to fraction form
    437,508.74/656,283.87 = 212,601.26/x
  3. Step 3: Cross multiply
    437,508.74x = 656,283.87 × 212,601.26
  4. Step 4: Simplify right side
    437,508.74x = 139,526,779,320.39
  5. Step 5: Solve for x
    x = 139,526,779,320.39/437,508.74
  6. Step 6: Final answer
    x = 318,911.98

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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.