Home / 328,520.17-492,833.49-128,732.23

Finding the Fourth Proportional to 328,520.17, 492,833.49 and 128,732.23

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Solution

The fourth proportional to 328,520.17, 492,833.49 and 128,732.23 is: 193,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,520.17 : 492,833.49 = 128,732.23 : x
  2. Step 2: Convert to fraction form
    328,520.17/492,833.49 = 128,732.23/x
  3. Step 3: Cross multiply
    328,520.17x = 492,833.49 × 128,732.23
  4. Step 4: Simplify right side
    328,520.17x = 63,443,554,186.38
  5. Step 5: Solve for x
    x = 63,443,554,186.38/328,520.17
  6. Step 6: Final answer
    x = 193,119.21

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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.