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Finding the Fourth Proportional to 404,588.32, 607,057.44 and 155,212

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Solution

The fourth proportional to 404,588.32, 607,057.44 and 155,212 is: 232,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,588.32 : 607,057.44 = 155,212 : x
  2. Step 2: Convert to fraction form
    404,588.32/607,057.44 = 155,212/x
  3. Step 3: Cross multiply
    404,588.32x = 607,057.44 × 155,212
  4. Step 4: Simplify right side
    404,588.32x = 94,222,599,377.28
  5. Step 5: Solve for x
    x = 94,222,599,377.28/404,588.32
  6. Step 6: Final answer
    x = 232,885.12

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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.