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Finding the Fourth Proportional to 255,538.65, 382,884.22 and 155,395.92

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Solution

The fourth proportional to 255,538.65, 382,884.22 and 155,395.92 is: 232,836.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,538.65 : 382,884.22 = 155,395.92 : x
  2. Step 2: Convert to fraction form
    255,538.65/382,884.22 = 155,395.92/x
  3. Step 3: Cross multiply
    255,538.65x = 382,884.22 × 155,395.92
  4. Step 4: Simplify right side
    255,538.65x = 59,498,644,094.45
  5. Step 5: Solve for x
    x = 59,498,644,094.45/255,538.65
  6. Step 6: Final answer
    x = 232,836.19

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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.