Home / 328,190.97-492,089.40-128,273.13

Finding the Fourth Proportional to 328,190.97, 492,089.40 and 128,273.13

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Solution

The fourth proportional to 328,190.97, 492,089.40 and 128,273.13 is: 192,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,190.97 : 492,089.40 = 128,273.13 : x
  2. Step 2: Convert to fraction form
    328,190.97/492,089.40 = 128,273.13/x
  3. Step 3: Cross multiply
    328,190.97x = 492,089.40 × 128,273.13
  4. Step 4: Simplify right side
    328,190.97x = 63,121,847,577.82
  5. Step 5: Solve for x
    x = 63,121,847,577.82/328,190.97
  6. Step 6: Final answer
    x = 192,332.68

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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.