Home / 239,739.68-359,498.28-139,928.60

Finding the Fourth Proportional to 239,739.68, 359,498.28 and 139,928.60

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Solution

The fourth proportional to 239,739.68, 359,498.28 and 139,928.60 is: 209,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,739.68 : 359,498.28 = 139,928.60 : x
  2. Step 2: Convert to fraction form
    239,739.68/359,498.28 = 139,928.60/x
  3. Step 3: Cross multiply
    239,739.68x = 359,498.28 × 139,928.60
  4. Step 4: Simplify right side
    239,739.68x = 50,304,091,022.81
  5. Step 5: Solve for x
    x = 50,304,091,022.81/239,739.68
  6. Step 6: Final answer
    x = 209,827.97

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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.