Home / 259,007.32-388,580.10-92,812.12

Finding the Fourth Proportional to 259,007.32, 388,580.10 and 92,812.12

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Solution

The fourth proportional to 259,007.32, 388,580.10 and 92,812.12 is: 139,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,007.32 : 388,580.10 = 92,812.12 : x
  2. Step 2: Convert to fraction form
    259,007.32/388,580.10 = 92,812.12/x
  3. Step 3: Cross multiply
    259,007.32x = 388,580.10 × 92,812.12
  4. Step 4: Simplify right side
    259,007.32x = 36,064,942,870.81
  5. Step 5: Solve for x
    x = 36,064,942,870.81/259,007.32
  6. Step 6: Final answer
    x = 139,242.95

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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.