Home / 257,080.23-385,699.11-115,045.06

Finding the Fourth Proportional to 257,080.23, 385,699.11 and 115,045.06

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Solution

The fourth proportional to 257,080.23, 385,699.11 and 115,045.06 is: 172,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,080.23 : 385,699.11 = 115,045.06 : x
  2. Step 2: Convert to fraction form
    257,080.23/385,699.11 = 115,045.06/x
  3. Step 3: Cross multiply
    257,080.23x = 385,699.11 × 115,045.06
  4. Step 4: Simplify right side
    257,080.23x = 44,372,777,251.90
  5. Step 5: Solve for x
    x = 44,372,777,251.90/257,080.23
  6. Step 6: Final answer
    x = 172,602.84

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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.