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Finding the Fourth Proportional to 376,720.60, 565,518.30 and 216,923.80

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Solution

The fourth proportional to 376,720.60, 565,518.30 and 216,923.80 is: 325,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,720.60 : 565,518.30 = 216,923.80 : x
  2. Step 2: Convert to fraction form
    376,720.60/565,518.30 = 216,923.80/x
  3. Step 3: Cross multiply
    376,720.60x = 565,518.30 × 216,923.80
  4. Step 4: Simplify right side
    376,720.60x = 122,674,378,605.54
  5. Step 5: Solve for x
    x = 122,674,378,605.54/376,720.60
  6. Step 6: Final answer
    x = 325,637.56

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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.