Home / 353,419.13-487,635.49-200,423.90

Finding the Fourth Proportional to 353,419.13, 487,635.49 and 200,423.90

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Solution

The fourth proportional to 353,419.13, 487,635.49 and 200,423.90 is: 276,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,419.13 : 487,635.49 = 200,423.90 : x
  2. Step 2: Convert to fraction form
    353,419.13/487,635.49 = 200,423.90/x
  3. Step 3: Cross multiply
    353,419.13x = 487,635.49 × 200,423.90
  4. Step 4: Simplify right side
    353,419.13x = 97,733,808,153.83
  5. Step 5: Solve for x
    x = 97,733,808,153.83/353,419.13
  6. Step 6: Final answer
    x = 276,537.97

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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.