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Finding the Fourth Proportional to 295,066.20, 442,728.90 and 137,213.40

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Solution

The fourth proportional to 295,066.20, 442,728.90 and 137,213.40 is: 205,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,066.20 : 442,728.90 = 137,213.40 : x
  2. Step 2: Convert to fraction form
    295,066.20/442,728.90 = 137,213.40/x
  3. Step 3: Cross multiply
    295,066.20x = 442,728.90 × 137,213.40
  4. Step 4: Simplify right side
    295,066.20x = 60,748,337,647.26
  5. Step 5: Solve for x
    x = 60,748,337,647.26/295,066.20
  6. Step 6: Final answer
    x = 205,880.37

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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.