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Finding the Fourth Proportional to 445,881.75, 668,892.36 and 146,294.20

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Solution

The fourth proportional to 445,881.75, 668,892.36 and 146,294.20 is: 219,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,881.75 : 668,892.36 = 146,294.20 : x
  2. Step 2: Convert to fraction form
    445,881.75/668,892.36 = 146,294.20/x
  3. Step 3: Cross multiply
    445,881.75x = 668,892.36 × 146,294.20
  4. Step 4: Simplify right side
    445,881.75x = 97,855,074,077.03
  5. Step 5: Solve for x
    x = 97,855,074,077.03/445,881.75
  6. Step 6: Final answer
    x = 219,464.19

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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.