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Finding the Fourth Proportional to 353,284.47, 487,602.59 and 200,325.69

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Solution

The fourth proportional to 353,284.47, 487,602.59 and 200,325.69 is: 276,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,284.47 : 487,602.59 = 200,325.69 : x
  2. Step 2: Convert to fraction form
    353,284.47/487,602.59 = 200,325.69/x
  3. Step 3: Cross multiply
    353,284.47x = 487,602.59 × 200,325.69
  4. Step 4: Simplify right side
    353,284.47x = 97,679,324,285.91
  5. Step 5: Solve for x
    x = 97,679,324,285.91/353,284.47
  6. Step 6: Final answer
    x = 276,489.15

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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.