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Finding the Fourth Proportional to 343,457.83, 515,233.62 and 118,757.93

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Solution

The fourth proportional to 343,457.83, 515,233.62 and 118,757.93 is: 178,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,457.83 : 515,233.62 = 118,757.93 : x
  2. Step 2: Convert to fraction form
    343,457.83/515,233.62 = 118,757.93/x
  3. Step 3: Cross multiply
    343,457.83x = 515,233.62 × 118,757.93
  4. Step 4: Simplify right side
    343,457.83x = 61,188,077,088.22
  5. Step 5: Solve for x
    x = 61,188,077,088.22/343,457.83
  6. Step 6: Final answer
    x = 178,153.10

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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.