Home / 388,830.26-536,736.23-303,974.66

Finding the Fourth Proportional to 388,830.26, 536,736.23 and 303,974.66

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Solution

The fourth proportional to 388,830.26, 536,736.23 and 303,974.66 is: 419,602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,830.26 : 536,736.23 = 303,974.66 : x
  2. Step 2: Convert to fraction form
    388,830.26/536,736.23 = 303,974.66/x
  3. Step 3: Cross multiply
    388,830.26x = 536,736.23 × 303,974.66
  4. Step 4: Simplify right side
    388,830.26x = 163,154,208,820.38
  5. Step 5: Solve for x
    x = 163,154,208,820.38/388,830.26
  6. Step 6: Final answer
    x = 419,602.66

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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.