Home / 384,961.42-577,435.76-115,090.18

Finding the Fourth Proportional to 384,961.42, 577,435.76 and 115,090.18

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Solution

The fourth proportional to 384,961.42, 577,435.76 and 115,090.18 is: 172,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,961.42 : 577,435.76 = 115,090.18 : x
  2. Step 2: Convert to fraction form
    384,961.42/577,435.76 = 115,090.18/x
  3. Step 3: Cross multiply
    384,961.42x = 577,435.76 × 115,090.18
  4. Step 4: Simplify right side
    384,961.42x = 66,457,183,969.38
  5. Step 5: Solve for x
    x = 66,457,183,969.38/384,961.42
  6. Step 6: Final answer
    x = 172,633.36

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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.