Home / 345,727.89-518,586.69-210,831.60

Finding the Fourth Proportional to 345,727.89, 518,586.69 and 210,831.60

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Solution

The fourth proportional to 345,727.89, 518,586.69 and 210,831.60 is: 316,244.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,727.89 : 518,586.69 = 210,831.60 : x
  2. Step 2: Convert to fraction form
    345,727.89/518,586.69 = 210,831.60/x
  3. Step 3: Cross multiply
    345,727.89x = 518,586.69 × 210,831.60
  4. Step 4: Simplify right side
    345,727.89x = 109,334,461,591.40
  5. Step 5: Solve for x
    x = 109,334,461,591.40/345,727.89
  6. Step 6: Final answer
    x = 316,244.26

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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.