Home / 461,246.40-691,804.80-145,735.20

Finding the Fourth Proportional to 461,246.40, 691,804.80 and 145,735.20

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Solution

The fourth proportional to 461,246.40, 691,804.80 and 145,735.20 is: 218,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,246.40 : 691,804.80 = 145,735.20 : x
  2. Step 2: Convert to fraction form
    461,246.40/691,804.80 = 145,735.20/x
  3. Step 3: Cross multiply
    461,246.40x = 691,804.80 × 145,735.20
  4. Step 4: Simplify right side
    461,246.40x = 100,820,310,888.96
  5. Step 5: Solve for x
    x = 100,820,310,888.96/461,246.40
  6. Step 6: Final answer
    x = 218,582.33

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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.