Home / 345,266.62-517,970.94-145,587.58

Finding the Fourth Proportional to 345,266.62, 517,970.94 and 145,587.58

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Solution

The fourth proportional to 345,266.62, 517,970.94 and 145,587.58 is: 218,411.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,266.62 : 517,970.94 = 145,587.58 : x
  2. Step 2: Convert to fraction form
    345,266.62/517,970.94 = 145,587.58/x
  3. Step 3: Cross multiply
    345,266.62x = 517,970.94 × 145,587.58
  4. Step 4: Simplify right side
    345,266.62x = 75,410,135,664.93
  5. Step 5: Solve for x
    x = 75,410,135,664.93/345,266.62
  6. Step 6: Final answer
    x = 218,411.31

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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.