Home / 300,828.52-451,242.78-153,188.20

Finding the Fourth Proportional to 300,828.52, 451,242.78 and 153,188.20

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Solution

The fourth proportional to 300,828.52, 451,242.78 and 153,188.20 is: 229,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,828.52 : 451,242.78 = 153,188.20 : x
  2. Step 2: Convert to fraction form
    300,828.52/451,242.78 = 153,188.20/x
  3. Step 3: Cross multiply
    300,828.52x = 451,242.78 × 153,188.20
  4. Step 4: Simplify right side
    300,828.52x = 69,125,069,231.20
  5. Step 5: Solve for x
    x = 69,125,069,231.20/300,828.52
  6. Step 6: Final answer
    x = 229,782.30

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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.