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Finding the Fourth Proportional to 354,923.71, 489,795.83 and 227,599.81

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Solution

The fourth proportional to 354,923.71, 489,795.83 and 227,599.81 is: 314,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,923.71 : 489,795.83 = 227,599.81 : x
  2. Step 2: Convert to fraction form
    354,923.71/489,795.83 = 227,599.81/x
  3. Step 3: Cross multiply
    354,923.71x = 489,795.83 × 227,599.81
  4. Step 4: Simplify right side
    354,923.71x = 111,477,436,337.80
  5. Step 5: Solve for x
    x = 111,477,436,337.80/354,923.71
  6. Step 6: Final answer
    x = 314,088.45

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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.