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Finding the Fourth Proportional to 288,092.60, 431,118.30 and 251,059.40

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Solution

The fourth proportional to 288,092.60, 431,118.30 and 251,059.40 is: 375,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,092.60 : 431,118.30 = 251,059.40 : x
  2. Step 2: Convert to fraction form
    288,092.60/431,118.30 = 251,059.40/x
  3. Step 3: Cross multiply
    288,092.60x = 431,118.30 × 251,059.40
  4. Step 4: Simplify right side
    288,092.60x = 108,236,301,727.02
  5. Step 5: Solve for x
    x = 108,236,301,727.02/288,092.60
  6. Step 6: Final answer
    x = 375,699.69

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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.