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Finding the Fourth Proportional to 385,804.82, 578,707.29 and 161,042.64

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Solution

The fourth proportional to 385,804.82, 578,707.29 and 161,042.64 is: 241,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,804.82 : 578,707.29 = 161,042.64 : x
  2. Step 2: Convert to fraction form
    385,804.82/578,707.29 = 161,042.64/x
  3. Step 3: Cross multiply
    385,804.82x = 578,707.29 × 161,042.64
  4. Step 4: Simplify right side
    385,804.82x = 93,196,549,768.85
  5. Step 5: Solve for x
    x = 93,196,549,768.85/385,804.82
  6. Step 6: Final answer
    x = 241,563.99

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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.