Home / 353,284.32-487,408.68-200,300.16

Finding the Fourth Proportional to 353,284.32, 487,408.68 and 200,300.16

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Solution

The fourth proportional to 353,284.32, 487,408.68 and 200,300.16 is: 276,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,284.32 : 487,408.68 = 200,300.16 : x
  2. Step 2: Convert to fraction form
    353,284.32/487,408.68 = 200,300.16/x
  3. Step 3: Cross multiply
    353,284.32x = 487,408.68 × 200,300.16
  4. Step 4: Simplify right side
    353,284.32x = 97,628,036,589.39
  5. Step 5: Solve for x
    x = 97,628,036,589.39/353,284.32
  6. Step 6: Final answer
    x = 276,344.10

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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.