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Finding the Fourth Proportional to 553,399.60, 830,099.40 and 179,422.60

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Solution

The fourth proportional to 553,399.60, 830,099.40 and 179,422.60 is: 269,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,399.60 : 830,099.40 = 179,422.60 : x
  2. Step 2: Convert to fraction form
    553,399.60/830,099.40 = 179,422.60/x
  3. Step 3: Cross multiply
    553,399.60x = 830,099.40 × 179,422.60
  4. Step 4: Simplify right side
    553,399.60x = 148,938,592,606.44
  5. Step 5: Solve for x
    x = 148,938,592,606.44/553,399.60
  6. Step 6: Final answer
    x = 269,133.90

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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.