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Finding the Fourth Proportional to 239,798.20, 330,921.58 and 132,368.30

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Solution

The fourth proportional to 239,798.20, 330,921.58 and 132,368.30 is: 182,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,798.20 : 330,921.58 = 132,368.30 : x
  2. Step 2: Convert to fraction form
    239,798.20/330,921.58 = 132,368.30/x
  3. Step 3: Cross multiply
    239,798.20x = 330,921.58 × 132,368.30
  4. Step 4: Simplify right side
    239,798.20x = 43,803,526,977.91
  5. Step 5: Solve for x
    x = 43,803,526,977.91/239,798.20
  6. Step 6: Final answer
    x = 182,668.29

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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.