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Finding the Fourth Proportional to 456,984.96, 630,638.88 and 255,780.96

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Solution

The fourth proportional to 456,984.96, 630,638.88 and 255,780.96 is: 352,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,984.96 : 630,638.88 = 255,780.96 : x
  2. Step 2: Convert to fraction form
    456,984.96/630,638.88 = 255,780.96/x
  3. Step 3: Cross multiply
    456,984.96x = 630,638.88 × 255,780.96
  4. Step 4: Simplify right side
    456,984.96x = 161,305,418,139.73
  5. Step 5: Solve for x
    x = 161,305,418,139.73/456,984.96
  6. Step 6: Final answer
    x = 352,977.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.