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Finding the Fourth Proportional to 328,033.80, 490,253.22 and 239,473.80

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Solution

The fourth proportional to 328,033.80, 490,253.22 and 239,473.80 is: 357,898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,033.80 : 490,253.22 = 239,473.80 : x
  2. Step 2: Convert to fraction form
    328,033.80/490,253.22 = 239,473.80/x
  3. Step 3: Cross multiply
    328,033.80x = 490,253.22 × 239,473.80
  4. Step 4: Simplify right side
    328,033.80x = 117,402,801,555.64
  5. Step 5: Solve for x
    x = 117,402,801,555.64/328,033.80
  6. Step 6: Final answer
    x = 357,898.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.