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Finding the Fourth Proportional to 255,224.84, 383,073.55 and 128,953.95

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Solution

The fourth proportional to 255,224.84, 383,073.55 and 128,953.95 is: 193,550.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,224.84 : 383,073.55 = 128,953.95 : x
  2. Step 2: Convert to fraction form
    255,224.84/383,073.55 = 128,953.95/x
  3. Step 3: Cross multiply
    255,224.84x = 383,073.55 × 128,953.95
  4. Step 4: Simplify right side
    255,224.84x = 49,398,847,456.87
  5. Step 5: Solve for x
    x = 49,398,847,456.87/255,224.84
  6. Step 6: Final answer
    x = 193,550.31

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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.