Home / 307,813.20-461,719.80-190,232.40

Finding the Fourth Proportional to 307,813.20, 461,719.80 and 190,232.40

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Solution

The fourth proportional to 307,813.20, 461,719.80 and 190,232.40 is: 285,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,813.20 : 461,719.80 = 190,232.40 : x
  2. Step 2: Convert to fraction form
    307,813.20/461,719.80 = 190,232.40/x
  3. Step 3: Cross multiply
    307,813.20x = 461,719.80 × 190,232.40
  4. Step 4: Simplify right side
    307,813.20x = 87,834,065,681.52
  5. Step 5: Solve for x
    x = 87,834,065,681.52/307,813.20
  6. Step 6: Final answer
    x = 285,348.60

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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.