Home / 353,457.64-487,610.82-210,136.36

Finding the Fourth Proportional to 353,457.64, 487,610.82 and 210,136.36

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Solution

The fourth proportional to 353,457.64, 487,610.82 and 210,136.36 is: 289,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,457.64 : 487,610.82 = 210,136.36 : x
  2. Step 2: Convert to fraction form
    353,457.64/487,610.82 = 210,136.36/x
  3. Step 3: Cross multiply
    353,457.64x = 487,610.82 × 210,136.36
  4. Step 4: Simplify right side
    353,457.64x = 102,464,762,811.42
  5. Step 5: Solve for x
    x = 102,464,762,811.42/353,457.64
  6. Step 6: Final answer
    x = 289,892.62

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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.