Home / 355,263.76-533,009.39-127,405.85

Finding the Fourth Proportional to 355,263.76, 533,009.39 and 127,405.85

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Solution

The fourth proportional to 355,263.76, 533,009.39 and 127,405.85 is: 191,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,263.76 : 533,009.39 = 127,405.85 : x
  2. Step 2: Convert to fraction form
    355,263.76/533,009.39 = 127,405.85/x
  3. Step 3: Cross multiply
    355,263.76x = 533,009.39 × 127,405.85
  4. Step 4: Simplify right side
    355,263.76x = 67,908,514,390.93
  5. Step 5: Solve for x
    x = 67,908,514,390.93/355,263.76
  6. Step 6: Final answer
    x = 191,149.57

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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.