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Finding the Fourth Proportional to 403,573.60, 605,214.60 and 163,586.80

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Solution

The fourth proportional to 403,573.60, 605,214.60 and 163,586.80 is: 245,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,573.60 : 605,214.60 = 163,586.80 : x
  2. Step 2: Convert to fraction form
    403,573.60/605,214.60 = 163,586.80/x
  3. Step 3: Cross multiply
    403,573.60x = 605,214.60 × 163,586.80
  4. Step 4: Simplify right side
    403,573.60x = 99,005,119,727.28
  5. Step 5: Solve for x
    x = 99,005,119,727.28/403,573.60
  6. Step 6: Final answer
    x = 245,321.10

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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.