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Finding the Fourth Proportional to 315,741.36, 471,308.79 and 275,882.88

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Solution

The fourth proportional to 315,741.36, 471,308.79 and 275,882.88 is: 411,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,741.36 : 471,308.79 = 275,882.88 : x
  2. Step 2: Convert to fraction form
    315,741.36/471,308.79 = 275,882.88/x
  3. Step 3: Cross multiply
    315,741.36x = 471,308.79 × 275,882.88
  4. Step 4: Simplify right side
    315,741.36x = 130,026,026,354.52
  5. Step 5: Solve for x
    x = 130,026,026,354.52/315,741.36
  6. Step 6: Final answer
    x = 411,811.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.