Home / 357,018.12-534,812.76-214,784.55

Finding the Fourth Proportional to 357,018.12, 534,812.76 and 214,784.55

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Solution

The fourth proportional to 357,018.12, 534,812.76 and 214,784.55 is: 321,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,018.12 : 534,812.76 = 214,784.55 : x
  2. Step 2: Convert to fraction form
    357,018.12/534,812.76 = 214,784.55/x
  3. Step 3: Cross multiply
    357,018.12x = 534,812.76 × 214,784.55
  4. Step 4: Simplify right side
    357,018.12x = 114,869,517,990.86
  5. Step 5: Solve for x
    x = 114,869,517,990.86/357,018.12
  6. Step 6: Final answer
    x = 321,747.03

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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.