Home / 328,032.20-492,089.99-128,326.97

Finding the Fourth Proportional to 328,032.20, 492,089.99 and 128,326.97

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Solution

The fourth proportional to 328,032.20, 492,089.99 and 128,326.97 is: 192,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,032.20 : 492,089.99 = 128,326.97 : x
  2. Step 2: Convert to fraction form
    328,032.20/492,089.99 = 128,326.97/x
  3. Step 3: Cross multiply
    328,032.20x = 492,089.99 × 128,326.97
  4. Step 4: Simplify right side
    328,032.20x = 63,148,417,972.62
  5. Step 5: Solve for x
    x = 63,148,417,972.62/328,032.20
  6. Step 6: Final answer
    x = 192,506.76

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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.