Home / 398,829.80-597,564.30-188,035.40

Finding the Fourth Proportional to 398,829.80, 597,564.30 and 188,035.40

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Solution

The fourth proportional to 398,829.80, 597,564.30 and 188,035.40 is: 281,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,829.80 : 597,564.30 = 188,035.40 : x
  2. Step 2: Convert to fraction form
    398,829.80/597,564.30 = 188,035.40/x
  3. Step 3: Cross multiply
    398,829.80x = 597,564.30 × 188,035.40
  4. Step 4: Simplify right side
    398,829.80x = 112,363,242,176.22
  5. Step 5: Solve for x
    x = 112,363,242,176.22/398,829.80
  6. Step 6: Final answer
    x = 281,732.31

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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.