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Finding the Fourth Proportional to 255,228.77, 382,843.28 and 105,304.28

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Solution

The fourth proportional to 255,228.77, 382,843.28 and 105,304.28 is: 157,956.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,228.77 : 382,843.28 = 105,304.28 : x
  2. Step 2: Convert to fraction form
    255,228.77/382,843.28 = 105,304.28/x
  3. Step 3: Cross multiply
    255,228.77x = 382,843.28 × 105,304.28
  4. Step 4: Simplify right side
    255,228.77x = 40,315,035,953.24
  5. Step 5: Solve for x
    x = 40,315,035,953.24/255,228.77
  6. Step 6: Final answer
    x = 157,956.47

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1.5x scale

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.