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Finding the Fourth Proportional to 255,540.27, 382,886.67 and 155,397.54

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Solution

The fourth proportional to 255,540.27, 382,886.67 and 155,397.54 is: 232,838.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,540.27 : 382,886.67 = 155,397.54 : x
  2. Step 2: Convert to fraction form
    255,540.27/382,886.67 = 155,397.54/x
  3. Step 3: Cross multiply
    255,540.27x = 382,886.67 × 155,397.54
  4. Step 4: Simplify right side
    255,540.27x = 59,499,646,616.79
  5. Step 5: Solve for x
    x = 59,499,646,616.79/255,540.27
  6. Step 6: Final answer
    x = 232,838.63

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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.