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Finding the Fourth Proportional to 537,697.68, 741,936 and 308,212.80

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Solution

The fourth proportional to 537,697.68, 741,936 and 308,212.80 is: 425,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,697.68 : 741,936 = 308,212.80 : x
  2. Step 2: Convert to fraction form
    537,697.68/741,936 = 308,212.80/x
  3. Step 3: Cross multiply
    537,697.68x = 741,936 × 308,212.80
  4. Step 4: Simplify right side
    537,697.68x = 228,674,171,980.80
  5. Step 5: Solve for x
    x = 228,674,171,980.80/537,697.68
  6. Step 6: Final answer
    x = 425,283.91

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Why These Related Problems?

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