Home / 378,881.05-567,829.50-153,979.77

Finding the Fourth Proportional to 378,881.05, 567,829.50 and 153,979.77

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Solution

The fourth proportional to 378,881.05, 567,829.50 and 153,979.77 is: 230,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,881.05 : 567,829.50 = 153,979.77 : x
  2. Step 2: Convert to fraction form
    378,881.05/567,829.50 = 153,979.77/x
  3. Step 3: Cross multiply
    378,881.05x = 567,829.50 × 153,979.77
  4. Step 4: Simplify right side
    378,881.05x = 87,434,255,809.22
  5. Step 5: Solve for x
    x = 87,434,255,809.22/378,881.05
  6. Step 6: Final answer
    x = 230,769.67

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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.