Home / 230,027.90-317,431.05-128,050.02

Finding the Fourth Proportional to 230,027.90, 317,431.05 and 128,050.02

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Solution

The fourth proportional to 230,027.90, 317,431.05 and 128,050.02 is: 176,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,027.90 : 317,431.05 = 128,050.02 : x
  2. Step 2: Convert to fraction form
    230,027.90/317,431.05 = 128,050.02/x
  3. Step 3: Cross multiply
    230,027.90x = 317,431.05 × 128,050.02
  4. Step 4: Simplify right side
    230,027.90x = 40,647,052,301.12
  5. Step 5: Solve for x
    x = 40,647,052,301.12/230,027.90
  6. Step 6: Final answer
    x = 176,704.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.