Home / 354,529.98-489,432.05-273,776.22

Finding the Fourth Proportional to 354,529.98, 489,432.05 and 273,776.22

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Solution

The fourth proportional to 354,529.98, 489,432.05 and 273,776.22 is: 377,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,529.98 : 489,432.05 = 273,776.22 : x
  2. Step 2: Convert to fraction form
    354,529.98/489,432.05 = 273,776.22/x
  3. Step 3: Cross multiply
    354,529.98x = 489,432.05 × 273,776.22
  4. Step 4: Simplify right side
    354,529.98x = 133,994,855,226.97
  5. Step 5: Solve for x
    x = 133,994,855,226.97/354,529.98
  6. Step 6: Final answer
    x = 377,950.70

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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.