Home / 260,022.04-389,945.22-72,989.08

Finding the Fourth Proportional to 260,022.04, 389,945.22 and 72,989.08

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Solution

The fourth proportional to 260,022.04, 389,945.22 and 72,989.08 is: 109,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,022.04 : 389,945.22 = 72,989.08 : x
  2. Step 2: Convert to fraction form
    260,022.04/389,945.22 = 72,989.08/x
  3. Step 3: Cross multiply
    260,022.04x = 389,945.22 × 72,989.08
  4. Step 4: Simplify right side
    260,022.04x = 28,461,742,858.20
  5. Step 5: Solve for x
    x = 28,461,742,858.20/260,022.04
  6. Step 6: Final answer
    x = 109,458.96

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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.