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Finding the Fourth Proportional to 610,549.91, 915,868.60 and 161,266.31

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Solution

The fourth proportional to 610,549.91, 915,868.60 and 161,266.31 is: 241,911.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,549.91 : 915,868.60 = 161,266.31 : x
  2. Step 2: Convert to fraction form
    610,549.91/915,868.60 = 161,266.31/x
  3. Step 3: Cross multiply
    610,549.91x = 915,868.60 × 161,266.31
  4. Step 4: Simplify right side
    610,549.91x = 147,698,749,566.87
  5. Step 5: Solve for x
    x = 147,698,749,566.87/610,549.91
  6. Step 6: Final answer
    x = 241,911.02

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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.