Home / 388,063.20-535,526.46-218,297.34

Finding the Fourth Proportional to 388,063.20, 535,526.46 and 218,297.34

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Solution

The fourth proportional to 388,063.20, 535,526.46 and 218,297.34 is: 301,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,063.20 : 535,526.46 = 218,297.34 : x
  2. Step 2: Convert to fraction form
    388,063.20/535,526.46 = 218,297.34/x
  3. Step 3: Cross multiply
    388,063.20x = 535,526.46 × 218,297.34
  4. Step 4: Simplify right side
    388,063.20x = 116,904,001,717.62
  5. Step 5: Solve for x
    x = 116,904,001,717.62/388,063.20
  6. Step 6: Final answer
    x = 301,249.90

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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.