Home / 353,379.04-487,552.98-200,405.20

Finding the Fourth Proportional to 353,379.04, 487,552.98 and 200,405.20

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Solution

The fourth proportional to 353,379.04, 487,552.98 and 200,405.20 is: 276,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,379.04 : 487,552.98 = 200,405.20 : x
  2. Step 2: Convert to fraction form
    353,379.04/487,552.98 = 200,405.20/x
  3. Step 3: Cross multiply
    353,379.04x = 487,552.98 × 200,405.20
  4. Step 4: Simplify right side
    353,379.04x = 97,708,152,467.50
  5. Step 5: Solve for x
    x = 97,708,152,467.50/353,379.04
  6. Step 6: Final answer
    x = 276,496.74

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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.