Home / 307,515.20-461,272.80-141,303.20

Finding the Fourth Proportional to 307,515.20, 461,272.80 and 141,303.20

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Solution

The fourth proportional to 307,515.20, 461,272.80 and 141,303.20 is: 211,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,515.20 : 461,272.80 = 141,303.20 : x
  2. Step 2: Convert to fraction form
    307,515.20/461,272.80 = 141,303.20/x
  3. Step 3: Cross multiply
    307,515.20x = 461,272.80 × 141,303.20
  4. Step 4: Simplify right side
    307,515.20x = 65,179,322,712.96
  5. Step 5: Solve for x
    x = 65,179,322,712.96/307,515.20
  6. Step 6: Final answer
    x = 211,954.80

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1.5x scale

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.