Home / 445,625.48-668,460.12-145,984.64

Finding the Fourth Proportional to 445,625.48, 668,460.12 and 145,984.64

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Solution

The fourth proportional to 445,625.48, 668,460.12 and 145,984.64 is: 218,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,625.48 : 668,460.12 = 145,984.64 : x
  2. Step 2: Convert to fraction form
    445,625.48/668,460.12 = 145,984.64/x
  3. Step 3: Cross multiply
    445,625.48x = 668,460.12 × 145,984.64
  4. Step 4: Simplify right side
    445,625.48x = 97,584,909,972.56
  5. Step 5: Solve for x
    x = 97,584,909,972.56/445,625.48
  6. Step 6: Final answer
    x = 218,984.13

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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.