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Finding the Fourth Proportional to 354,512.08, 489,223.44 and 203,610.16

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Solution

The fourth proportional to 354,512.08, 489,223.44 and 203,610.16 is: 280,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,512.08 : 489,223.44 = 203,610.16 : x
  2. Step 2: Convert to fraction form
    354,512.08/489,223.44 = 203,610.16/x
  3. Step 3: Cross multiply
    354,512.08x = 489,223.44 × 203,610.16
  4. Step 4: Simplify right side
    354,512.08x = 99,610,862,894.15
  5. Step 5: Solve for x
    x = 99,610,862,894.15/354,512.08
  6. Step 6: Final answer
    x = 280,980.17

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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.