Home / 354,822.48-489,581.92-203,890.32

Finding the Fourth Proportional to 354,822.48, 489,581.92 and 203,890.32

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Solution

The fourth proportional to 354,822.48, 489,581.92 and 203,890.32 is: 281,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,822.48 : 489,581.92 = 203,890.32 : x
  2. Step 2: Convert to fraction form
    354,822.48/489,581.92 = 203,890.32/x
  3. Step 3: Cross multiply
    354,822.48x = 489,581.92 × 203,890.32
  4. Step 4: Simplify right side
    354,822.48x = 99,821,011,887.10
  5. Step 5: Solve for x
    x = 99,821,011,887.10/354,822.48
  6. Step 6: Final answer
    x = 281,326.63

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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.