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Finding the Fourth Proportional to 343,130.96, 514,765.16 and 118,499.60

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Solution

The fourth proportional to 343,130.96, 514,765.16 and 118,499.60 is: 177,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,130.96 : 514,765.16 = 118,499.60 : x
  2. Step 2: Convert to fraction form
    343,130.96/514,765.16 = 118,499.60/x
  3. Step 3: Cross multiply
    343,130.96x = 514,765.16 × 118,499.60
  4. Step 4: Simplify right side
    343,130.96x = 60,999,465,553.94
  5. Step 5: Solve for x
    x = 60,999,465,553.94/343,130.96
  6. Step 6: Final answer
    x = 177,773.13

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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.