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Finding the Fourth Proportional to 401,011.78, 601,470.85 and 161,116.01

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Solution

The fourth proportional to 401,011.78, 601,470.85 and 161,116.01 is: 241,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,011.78 : 601,470.85 = 161,116.01 : x
  2. Step 2: Convert to fraction form
    401,011.78/601,470.85 = 161,116.01/x
  3. Step 3: Cross multiply
    401,011.78x = 601,470.85 × 161,116.01
  4. Step 4: Simplify right side
    401,011.78x = 96,906,583,483.31
  5. Step 5: Solve for x
    x = 96,906,583,483.31/401,011.78
  6. Step 6: Final answer
    x = 241,655.20

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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.