Home / 388,056.60-582,749.10-210,909.60

Finding the Fourth Proportional to 388,056.60, 582,749.10 and 210,909.60

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Solution

The fourth proportional to 388,056.60, 582,749.10 and 210,909.60 is: 316,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,056.60 : 582,749.10 = 210,909.60 : x
  2. Step 2: Convert to fraction form
    388,056.60/582,749.10 = 210,909.60/x
  3. Step 3: Cross multiply
    388,056.60x = 582,749.10 × 210,909.60
  4. Step 4: Simplify right side
    388,056.60x = 122,907,379,581.36
  5. Step 5: Solve for x
    x = 122,907,379,581.36/388,056.60
  6. Step 6: Final answer
    x = 316,725.39

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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.