Home / 355,277.14-490,276.60-194,128.72

Finding the Fourth Proportional to 355,277.14, 490,276.60 and 194,128.72

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Solution

The fourth proportional to 355,277.14, 490,276.60 and 194,128.72 is: 267,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,277.14 : 490,276.60 = 194,128.72 : x
  2. Step 2: Convert to fraction form
    355,277.14/490,276.60 = 194,128.72/x
  3. Step 3: Cross multiply
    355,277.14x = 490,276.60 × 194,128.72
  4. Step 4: Simplify right side
    355,277.14x = 95,176,768,803.95
  5. Step 5: Solve for x
    x = 95,176,768,803.95/355,277.14
  6. Step 6: Final answer
    x = 267,894.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.