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Finding the Fourth Proportional to 423,355.67, 634,775.93 and 179,909.77

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Solution

The fourth proportional to 423,355.67, 634,775.93 and 179,909.77 is: 269,755.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,355.67 : 634,775.93 = 179,909.77 : x
  2. Step 2: Convert to fraction form
    423,355.67/634,775.93 = 179,909.77/x
  3. Step 3: Cross multiply
    423,355.67x = 634,775.93 × 179,909.77
  4. Step 4: Simplify right side
    423,355.67x = 114,202,387,494.41
  5. Step 5: Solve for x
    x = 114,202,387,494.41/423,355.67
  6. Step 6: Final answer
    x = 269,755.19

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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.