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Finding the Fourth Proportional to 255,573.28, 383,435.07 and 75,663.28

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Solution

The fourth proportional to 255,573.28, 383,435.07 and 75,663.28 is: 113,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,573.28 : 383,435.07 = 75,663.28 : x
  2. Step 2: Convert to fraction form
    255,573.28/383,435.07 = 75,663.28/x
  3. Step 3: Cross multiply
    255,573.28x = 383,435.07 × 75,663.28
  4. Step 4: Simplify right side
    255,573.28x = 29,011,955,063.23
  5. Step 5: Solve for x
    x = 29,011,955,063.23/255,573.28
  6. Step 6: Final answer
    x = 113,517.17

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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.