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Finding the Fourth Proportional to 421,374.83, 632,511.99 and 181,607.03

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Solution

The fourth proportional to 421,374.83, 632,511.99 and 181,607.03 is: 272,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,374.83 : 632,511.99 = 181,607.03 : x
  2. Step 2: Convert to fraction form
    421,374.83/632,511.99 = 181,607.03/x
  3. Step 3: Cross multiply
    421,374.83x = 632,511.99 × 181,607.03
  4. Step 4: Simplify right side
    421,374.83x = 114,868,623,152.65
  5. Step 5: Solve for x
    x = 114,868,623,152.65/421,374.83
  6. Step 6: Final answer
    x = 272,604.38

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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.