Home / 328,552.07-492,828.11-128,966.45

Finding the Fourth Proportional to 328,552.07, 492,828.11 and 128,966.45

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Solution

The fourth proportional to 328,552.07, 492,828.11 and 128,966.45 is: 193,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,552.07 : 492,828.11 = 128,966.45 : x
  2. Step 2: Convert to fraction form
    328,552.07/492,828.11 = 128,966.45/x
  3. Step 3: Cross multiply
    328,552.07x = 492,828.11 × 128,966.45
  4. Step 4: Simplify right side
    328,552.07x = 63,558,291,806.91
  5. Step 5: Solve for x
    x = 63,558,291,806.91/328,552.07
  6. Step 6: Final answer
    x = 193,449.68

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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.