Home / 354,622.40-531,933.60-205,323.20

Finding the Fourth Proportional to 354,622.40, 531,933.60 and 205,323.20

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Solution

The fourth proportional to 354,622.40, 531,933.60 and 205,323.20 is: 307,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,622.40 : 531,933.60 = 205,323.20 : x
  2. Step 2: Convert to fraction form
    354,622.40/531,933.60 = 205,323.20/x
  3. Step 3: Cross multiply
    354,622.40x = 531,933.60 × 205,323.20
  4. Step 4: Simplify right side
    354,622.40x = 109,218,308,939.52
  5. Step 5: Solve for x
    x = 109,218,308,939.52/354,622.40
  6. Step 6: Final answer
    x = 307,984.80

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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.