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Finding the Fourth Proportional to 404,528.16, 606,878.64 and 155,208

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Solution

The fourth proportional to 404,528.16, 606,878.64 and 155,208 is: 232,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,528.16 : 606,878.64 = 155,208 : x
  2. Step 2: Convert to fraction form
    404,528.16/606,878.64 = 155,208/x
  3. Step 3: Cross multiply
    404,528.16x = 606,878.64 × 155,208
  4. Step 4: Simplify right side
    404,528.16x = 94,192,419,957.12
  5. Step 5: Solve for x
    x = 94,192,419,957.12/404,528.16
  6. Step 6: Final answer
    x = 232,845.15

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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.