Home / 480,218.10-720,363.60-143,232.39

Finding the Fourth Proportional to 480,218.10, 720,363.60 and 143,232.39

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Solution

The fourth proportional to 480,218.10, 720,363.60 and 143,232.39 is: 214,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,218.10 : 720,363.60 = 143,232.39 : x
  2. Step 2: Convert to fraction form
    480,218.10/720,363.60 = 143,232.39/x
  3. Step 3: Cross multiply
    480,218.10x = 720,363.60 × 143,232.39
  4. Step 4: Simplify right side
    480,218.10x = 103,179,400,097.00
  5. Step 5: Solve for x
    x = 103,179,400,097.00/480,218.10
  6. Step 6: Final answer
    x = 214,859.46

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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.