Home / 328,553.08-492,829.60-128,967.46

Finding the Fourth Proportional to 328,553.08, 492,829.60 and 128,967.46

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Solution

The fourth proportional to 328,553.08, 492,829.60 and 128,967.46 is: 193,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,553.08 : 492,829.60 = 128,967.46 : x
  2. Step 2: Convert to fraction form
    328,553.08/492,829.60 = 128,967.46/x
  3. Step 3: Cross multiply
    328,553.08x = 492,829.60 × 128,967.46
  4. Step 4: Simplify right side
    328,553.08x = 63,558,981,724.82
  5. Step 5: Solve for x
    x = 63,558,981,724.82/328,553.08
  6. Step 6: Final answer
    x = 193,451.18

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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.