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Finding the Fourth Proportional to 288,196.44, 432,285.36 and 130,424.88

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Solution

The fourth proportional to 288,196.44, 432,285.36 and 130,424.88 is: 195,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,196.44 : 432,285.36 = 130,424.88 : x
  2. Step 2: Convert to fraction form
    288,196.44/432,285.36 = 130,424.88/x
  3. Step 3: Cross multiply
    288,196.44x = 432,285.36 × 130,424.88
  4. Step 4: Simplify right side
    288,196.44x = 56,380,766,203.76
  5. Step 5: Solve for x
    x = 56,380,766,203.76/288,196.44
  6. Step 6: Final answer
    x = 195,633.11

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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.