Home / 258,981.24-388,829.61-178,831.11

Finding the Fourth Proportional to 258,981.24, 388,829.61 and 178,831.11

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Solution

The fourth proportional to 258,981.24, 388,829.61 and 178,831.11 is: 268,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,981.24 : 388,829.61 = 178,831.11 : x
  2. Step 2: Convert to fraction form
    258,981.24/388,829.61 = 178,831.11/x
  3. Step 3: Cross multiply
    258,981.24x = 388,829.61 × 178,831.11
  4. Step 4: Simplify right side
    258,981.24x = 69,534,830,757.17
  5. Step 5: Solve for x
    x = 69,534,830,757.17/258,981.24
  6. Step 6: Final answer
    x = 268,493.70

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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.