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Finding the Fourth Proportional to 451,671.33, 623,317.86 and 255,422.10

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Solution

The fourth proportional to 451,671.33, 623,317.86 and 255,422.10 is: 352,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,671.33 : 623,317.86 = 255,422.10 : x
  2. Step 2: Convert to fraction form
    451,671.33/623,317.86 = 255,422.10/x
  3. Step 3: Cross multiply
    451,671.33x = 623,317.86 × 255,422.10
  4. Step 4: Simplify right side
    451,671.33x = 159,209,156,768.71
  5. Step 5: Solve for x
    x = 159,209,156,768.71/451,671.33
  6. Step 6: Final answer
    x = 352,488.96

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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.