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Finding the Fourth Proportional to 287,213.60, 430,820.40 and 227,727.20

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Solution

The fourth proportional to 287,213.60, 430,820.40 and 227,727.20 is: 341,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,213.60 : 430,820.40 = 227,727.20 : x
  2. Step 2: Convert to fraction form
    287,213.60/430,820.40 = 227,727.20/x
  3. Step 3: Cross multiply
    287,213.60x = 430,820.40 × 227,727.20
  4. Step 4: Simplify right side
    287,213.60x = 98,109,523,394.88
  5. Step 5: Solve for x
    x = 98,109,523,394.88/287,213.60
  6. Step 6: Final answer
    x = 341,590.80

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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.