Home / 389,435.60-584,056.20-149,497.40

Finding the Fourth Proportional to 389,435.60, 584,056.20 and 149,497.40

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Solution

The fourth proportional to 389,435.60, 584,056.20 and 149,497.40 is: 224,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,435.60 : 584,056.20 = 149,497.40 : x
  2. Step 2: Convert to fraction form
    389,435.60/584,056.20 = 149,497.40/x
  3. Step 3: Cross multiply
    389,435.60x = 584,056.20 × 149,497.40
  4. Step 4: Simplify right side
    389,435.60x = 87,314,883,353.88
  5. Step 5: Solve for x
    x = 87,314,883,353.88/389,435.60
  6. Step 6: Final answer
    x = 224,208.79

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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.