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Finding the Fourth Proportional to 405,255.62, 607,876.71 and 155,991.62

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Solution

The fourth proportional to 405,255.62, 607,876.71 and 155,991.62 is: 233,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,255.62 : 607,876.71 = 155,991.62 : x
  2. Step 2: Convert to fraction form
    405,255.62/607,876.71 = 155,991.62/x
  3. Step 3: Cross multiply
    405,255.62x = 607,876.71 × 155,991.62
  4. Step 4: Simplify right side
    405,255.62x = 94,823,672,753.17
  5. Step 5: Solve for x
    x = 94,823,672,753.17/405,255.62
  6. Step 6: Final answer
    x = 233,984.84

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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.