Home / 230,203.30-317,638.45-128,226.16

Finding the Fourth Proportional to 230,203.30, 317,638.45 and 128,226.16

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Solution

The fourth proportional to 230,203.30, 317,638.45 and 128,226.16 is: 176,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,203.30 : 317,638.45 = 128,226.16 : x
  2. Step 2: Convert to fraction form
    230,203.30/317,638.45 = 128,226.16/x
  3. Step 3: Cross multiply
    230,203.30x = 317,638.45 × 128,226.16
  4. Step 4: Simplify right side
    230,203.30x = 40,729,556,761.19
  5. Step 5: Solve for x
    x = 40,729,556,761.19/230,203.30
  6. Step 6: Final answer
    x = 176,928.64

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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.