Home / 289,188.48-399,080.04-161,864.10

Finding the Fourth Proportional to 289,188.48, 399,080.04 and 161,864.10

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Solution

The fourth proportional to 289,188.48, 399,080.04 and 161,864.10 is: 223,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,188.48 : 399,080.04 = 161,864.10 : x
  2. Step 2: Convert to fraction form
    289,188.48/399,080.04 = 161,864.10/x
  3. Step 3: Cross multiply
    289,188.48x = 399,080.04 × 161,864.10
  4. Step 4: Simplify right side
    289,188.48x = 64,596,731,502.56
  5. Step 5: Solve for x
    x = 64,596,731,502.56/289,188.48
  6. Step 6: Final answer
    x = 223,372.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.