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Finding the Fourth Proportional to 442,952.40, 664,428.60 and 162,433.20

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Solution

The fourth proportional to 442,952.40, 664,428.60 and 162,433.20 is: 243,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,952.40 : 664,428.60 = 162,433.20 : x
  2. Step 2: Convert to fraction form
    442,952.40/664,428.60 = 162,433.20/x
  3. Step 3: Cross multiply
    442,952.40x = 664,428.60 × 162,433.20
  4. Step 4: Simplify right side
    442,952.40x = 107,925,263,669.52
  5. Step 5: Solve for x
    x = 107,925,263,669.52/442,952.40
  6. Step 6: Final answer
    x = 243,649.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.