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Finding the Fourth Proportional to 351,996.40, 526,957.80 and 331,490.80

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Solution

The fourth proportional to 351,996.40, 526,957.80 and 331,490.80 is: 496,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,996.40 : 526,957.80 = 331,490.80 : x
  2. Step 2: Convert to fraction form
    351,996.40/526,957.80 = 331,490.80/x
  3. Step 3: Cross multiply
    351,996.40x = 526,957.80 × 331,490.80
  4. Step 4: Simplify right side
    351,996.40x = 174,681,662,688.24
  5. Step 5: Solve for x
    x = 174,681,662,688.24/351,996.40
  6. Step 6: Final answer
    x = 496,259.80

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1.5x scale

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.