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Finding the Fourth Proportional to 354,270.24, 489,029.40 and 259,529.40

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Solution

The fourth proportional to 354,270.24, 489,029.40 and 259,529.40 is: 358,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,270.24 : 489,029.40 = 259,529.40 : x
  2. Step 2: Convert to fraction form
    354,270.24/489,029.40 = 259,529.40/x
  3. Step 3: Cross multiply
    354,270.24x = 489,029.40 × 259,529.40
  4. Step 4: Simplify right side
    354,270.24x = 126,917,506,764.36
  5. Step 5: Solve for x
    x = 126,917,506,764.36/354,270.24
  6. Step 6: Final answer
    x = 358,250.55

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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.