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Finding the Fourth Proportional to 322,412.28, 483,485.70 and 140,054.76

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Solution

The fourth proportional to 322,412.28, 483,485.70 and 140,054.76 is: 210,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,412.28 : 483,485.70 = 140,054.76 : x
  2. Step 2: Convert to fraction form
    322,412.28/483,485.70 = 140,054.76/x
  3. Step 3: Cross multiply
    322,412.28x = 483,485.70 × 140,054.76
  4. Step 4: Simplify right side
    322,412.28x = 67,714,473,676.93
  5. Step 5: Solve for x
    x = 67,714,473,676.93/322,412.28
  6. Step 6: Final answer
    x = 210,024.49

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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.