Home / 388,420.68-536,099.94-245,084.16

Finding the Fourth Proportional to 388,420.68, 536,099.94 and 245,084.16

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Solution

The fourth proportional to 388,420.68, 536,099.94 and 245,084.16 is: 338,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,420.68 : 536,099.94 = 245,084.16 : x
  2. Step 2: Convert to fraction form
    388,420.68/536,099.94 = 245,084.16/x
  3. Step 3: Cross multiply
    388,420.68x = 536,099.94 × 245,084.16
  4. Step 4: Simplify right side
    388,420.68x = 131,389,603,470.95
  5. Step 5: Solve for x
    x = 131,389,603,470.95/388,420.68
  6. Step 6: Final answer
    x = 338,266.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.