Home / 387,688.86-582,197.58-210,541.86

Finding the Fourth Proportional to 387,688.86, 582,197.58 and 210,541.86

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Solution

The fourth proportional to 387,688.86, 582,197.58 and 210,541.86 is: 316,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,688.86 : 582,197.58 = 210,541.86 : x
  2. Step 2: Convert to fraction form
    387,688.86/582,197.58 = 210,541.86/x
  3. Step 3: Cross multiply
    387,688.86x = 582,197.58 × 210,541.86
  4. Step 4: Simplify right side
    387,688.86x = 122,576,961,380.70
  5. Step 5: Solve for x
    x = 122,576,961,380.70/387,688.86
  6. Step 6: Final answer
    x = 316,173.55

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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.