Home / 355,412.03-533,211.50-127,730.63

Finding the Fourth Proportional to 355,412.03, 533,211.50 and 127,730.63

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Solution

The fourth proportional to 355,412.03, 533,211.50 and 127,730.63 is: 191,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,412.03 : 533,211.50 = 127,730.63 : x
  2. Step 2: Convert to fraction form
    355,412.03/533,211.50 = 127,730.63/x
  3. Step 3: Cross multiply
    355,412.03x = 533,211.50 × 127,730.63
  4. Step 4: Simplify right side
    355,412.03x = 68,107,442,470.60
  5. Step 5: Solve for x
    x = 68,107,442,470.60/355,412.03
  6. Step 6: Final answer
    x = 191,629.54

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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.