Home / 355,130.62-490,077.36-193,985.72

Finding the Fourth Proportional to 355,130.62, 490,077.36 and 193,985.72

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Solution

The fourth proportional to 355,130.62, 490,077.36 and 193,985.72 is: 267,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,130.62 : 490,077.36 = 193,985.72 : x
  2. Step 2: Convert to fraction form
    355,130.62/490,077.36 = 193,985.72/x
  3. Step 3: Cross multiply
    355,130.62x = 490,077.36 × 193,985.72
  4. Step 4: Simplify right side
    355,130.62x = 95,068,009,535.30
  5. Step 5: Solve for x
    x = 95,068,009,535.30/355,130.62
  6. Step 6: Final answer
    x = 267,698.71

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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.