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Finding the Fourth Proportional to 437,535.40, 656,323.96 and 212,627.88

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Solution

The fourth proportional to 437,535.40, 656,323.96 and 212,627.88 is: 318,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,535.40 : 656,323.96 = 212,627.88 : x
  2. Step 2: Convert to fraction form
    437,535.40/656,323.96 = 212,627.88/x
  3. Step 3: Cross multiply
    437,535.40x = 656,323.96 × 212,627.88
  4. Step 4: Simplify right side
    437,535.40x = 139,552,772,208.01
  5. Step 5: Solve for x
    x = 139,552,772,208.01/437,535.40
  6. Step 6: Final answer
    x = 318,951.96

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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.