Home / 286,821.36-430,350.48-126,813.24

Finding the Fourth Proportional to 286,821.36, 430,350.48 and 126,813.24

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Solution

The fourth proportional to 286,821.36, 430,350.48 and 126,813.24 is: 190,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,821.36 : 430,350.48 = 126,813.24 : x
  2. Step 2: Convert to fraction form
    286,821.36/430,350.48 = 126,813.24/x
  3. Step 3: Cross multiply
    286,821.36x = 430,350.48 × 126,813.24
  4. Step 4: Simplify right side
    286,821.36x = 54,574,138,704.36
  5. Step 5: Solve for x
    x = 54,574,138,704.36/286,821.36
  6. Step 6: Final answer
    x = 190,272.23

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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.