Home / 353,215.20-487,422.15-200,263.68

Finding the Fourth Proportional to 353,215.20, 487,422.15 and 200,263.68

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Solution

The fourth proportional to 353,215.20, 487,422.15 and 200,263.68 is: 276,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,215.20 : 487,422.15 = 200,263.68 : x
  2. Step 2: Convert to fraction form
    353,215.20/487,422.15 = 200,263.68/x
  3. Step 3: Cross multiply
    353,215.20x = 487,422.15 × 200,263.68
  4. Step 4: Simplify right side
    353,215.20x = 97,612,953,472.51
  5. Step 5: Solve for x
    x = 97,612,953,472.51/353,215.20
  6. Step 6: Final answer
    x = 276,355.47

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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.