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Finding the Fourth Proportional to 517,302.20, 775,977.60 and 162,327.80

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Solution

The fourth proportional to 517,302.20, 775,977.60 and 162,327.80 is: 243,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,302.20 : 775,977.60 = 162,327.80 : x
  2. Step 2: Convert to fraction form
    517,302.20/775,977.60 = 162,327.80/x
  3. Step 3: Cross multiply
    517,302.20x = 775,977.60 × 162,327.80
  4. Step 4: Simplify right side
    517,302.20x = 125,962,736,657.28
  5. Step 5: Solve for x
    x = 125,962,736,657.28/517,302.20
  6. Step 6: Final answer
    x = 243,499.33

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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.