Home / 287,090.64-430,491.15-167,186.34

Finding the Fourth Proportional to 287,090.64, 430,491.15 and 167,186.34

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Solution

The fourth proportional to 287,090.64, 430,491.15 and 167,186.34 is: 250,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,090.64 : 430,491.15 = 167,186.34 : x
  2. Step 2: Convert to fraction form
    287,090.64/430,491.15 = 167,186.34/x
  3. Step 3: Cross multiply
    287,090.64x = 430,491.15 × 167,186.34
  4. Step 4: Simplify right side
    287,090.64x = 71,972,239,770.89
  5. Step 5: Solve for x
    x = 71,972,239,770.89/287,090.64
  6. Step 6: Final answer
    x = 250,695.18

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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.