Home / 353,283.09-487,520.24-200,335.20

Finding the Fourth Proportional to 353,283.09, 487,520.24 and 200,335.20

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Solution

The fourth proportional to 353,283.09, 487,520.24 and 200,335.20 is: 276,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,283.09 : 487,520.24 = 200,335.20 : x
  2. Step 2: Convert to fraction form
    353,283.09/487,520.24 = 200,335.20/x
  3. Step 3: Cross multiply
    353,283.09x = 487,520.24 × 200,335.20
  4. Step 4: Simplify right side
    353,283.09x = 97,667,463,782.77
  5. Step 5: Solve for x
    x = 97,667,463,782.77/353,283.09
  6. Step 6: Final answer
    x = 276,456.66

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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.