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Finding the Fourth Proportional to 351,009.74, 484,393.50 and 189,864.74

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Solution

The fourth proportional to 351,009.74, 484,393.50 and 189,864.74 is: 262,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,009.74 : 484,393.50 = 189,864.74 : x
  2. Step 2: Convert to fraction form
    351,009.74/484,393.50 = 189,864.74/x
  3. Step 3: Cross multiply
    351,009.74x = 484,393.50 × 189,864.74
  4. Step 4: Simplify right side
    351,009.74x = 91,969,242,563.90
  5. Step 5: Solve for x
    x = 91,969,242,563.90/351,009.74
  6. Step 6: Final answer
    x = 262,013.37

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1.5x scale

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.