Home / 353,266.40-487,497.20-200,318.55

Finding the Fourth Proportional to 353,266.40, 487,497.20 and 200,318.55

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Solution

The fourth proportional to 353,266.40, 487,497.20 and 200,318.55 is: 276,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,266.40 : 487,497.20 = 200,318.55 : x
  2. Step 2: Convert to fraction form
    353,266.40/487,497.20 = 200,318.55/x
  3. Step 3: Cross multiply
    353,266.40x = 487,497.20 × 200,318.55
  4. Step 4: Simplify right side
    353,266.40x = 97,654,733,272.32
  5. Step 5: Solve for x
    x = 97,654,733,272.32/353,266.40
  6. Step 6: Final answer
    x = 276,433.69

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1.5x scale

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.