Home / 434,146.83-651,816.74-221,057.90

Finding the Fourth Proportional to 434,146.83, 651,816.74 and 221,057.90

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Solution

The fourth proportional to 434,146.83, 651,816.74 and 221,057.90 is: 331,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,146.83 : 651,816.74 = 221,057.90 : x
  2. Step 2: Convert to fraction form
    434,146.83/651,816.74 = 221,057.90/x
  3. Step 3: Cross multiply
    434,146.83x = 651,816.74 × 221,057.90
  4. Step 4: Simplify right side
    434,146.83x = 144,089,236,470.16
  5. Step 5: Solve for x
    x = 144,089,236,470.16/434,146.83
  6. Step 6: Final answer
    x = 331,890.57

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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.