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Finding the Fourth Proportional to 255,277.66, 383,152.94 and 129,006.76

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Solution

The fourth proportional to 255,277.66, 383,152.94 and 129,006.76 is: 193,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,277.66 : 383,152.94 = 129,006.76 : x
  2. Step 2: Convert to fraction form
    255,277.66/383,152.94 = 129,006.76/x
  3. Step 3: Cross multiply
    255,277.66x = 383,152.94 × 129,006.76
  4. Step 4: Simplify right side
    255,277.66x = 49,429,319,373.87
  5. Step 5: Solve for x
    x = 49,429,319,373.87/255,277.66
  6. Step 6: Final answer
    x = 193,629.63

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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.