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Finding the Fourth Proportional to 632,243.60, 948,167.96 and 211,421.20

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Solution

The fourth proportional to 632,243.60, 948,167.96 and 211,421.20 is: 317,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,243.60 : 948,167.96 = 211,421.20 : x
  2. Step 2: Convert to fraction form
    632,243.60/948,167.96 = 211,421.20/x
  3. Step 3: Cross multiply
    632,243.60x = 948,167.96 × 211,421.20
  4. Step 4: Simplify right side
    632,243.60x = 200,462,807,904.75
  5. Step 5: Solve for x
    x = 200,462,807,904.75/632,243.60
  6. Step 6: Final answer
    x = 317,065.78

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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.