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Finding the Fourth Proportional to 666,346.30, 999,244.48 and 255,953.58

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Solution

The fourth proportional to 666,346.30, 999,244.48 and 255,953.58 is: 383,824.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,346.30 : 999,244.48 = 255,953.58 : x
  2. Step 2: Convert to fraction form
    666,346.30/999,244.48 = 255,953.58/x
  3. Step 3: Cross multiply
    666,346.30x = 999,244.48 × 255,953.58
  4. Step 4: Simplify right side
    666,346.30x = 255,760,201,951.24
  5. Step 5: Solve for x
    x = 255,760,201,951.24/666,346.30
  6. Step 6: Final answer
    x = 383,824.75

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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.