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Finding the Fourth Proportional to 288,775.20, 432,644.40 and 255,597.60

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Solution

The fourth proportional to 288,775.20, 432,644.40 and 255,597.60 is: 382,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,775.20 : 432,644.40 = 255,597.60 : x
  2. Step 2: Convert to fraction form
    288,775.20/432,644.40 = 255,597.60/x
  3. Step 3: Cross multiply
    288,775.20x = 432,644.40 × 255,597.60
  4. Step 4: Simplify right side
    288,775.20x = 110,582,870,293.44
  5. Step 5: Solve for x
    x = 110,582,870,293.44/288,775.20
  6. Step 6: Final answer
    x = 382,937.56

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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.