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Finding the Fourth Proportional to 553,529.68, 830,295.30 and 154,171.60

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Solution

The fourth proportional to 553,529.68, 830,295.30 and 154,171.60 is: 231,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,529.68 : 830,295.30 = 154,171.60 : x
  2. Step 2: Convert to fraction form
    553,529.68/830,295.30 = 154,171.60/x
  3. Step 3: Cross multiply
    553,529.68x = 830,295.30 × 154,171.60
  4. Step 4: Simplify right side
    553,529.68x = 128,007,954,873.48
  5. Step 5: Solve for x
    x = 128,007,954,873.48/553,529.68
  6. Step 6: Final answer
    x = 231,257.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.