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Finding the Fourth Proportional to 494,719.99, 742,200.77 and 157,760.66

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Solution

The fourth proportional to 494,719.99, 742,200.77 and 157,760.66 is: 236,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,719.99 : 742,200.77 = 157,760.66 : x
  2. Step 2: Convert to fraction form
    494,719.99/742,200.77 = 157,760.66/x
  3. Step 3: Cross multiply
    494,719.99x = 742,200.77 × 157,760.66
  4. Step 4: Simplify right side
    494,719.99x = 117,090,085,577.61
  5. Step 5: Solve for x
    x = 117,090,085,577.61/494,719.99
  6. Step 6: Final answer
    x = 236,679.51

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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.