Home / 275,848.16-380,646.90-154,979.96

Finding the Fourth Proportional to 275,848.16, 380,646.90 and 154,979.96

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Solution

The fourth proportional to 275,848.16, 380,646.90 and 154,979.96 is: 213,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,848.16 : 380,646.90 = 154,979.96 : x
  2. Step 2: Convert to fraction form
    275,848.16/380,646.90 = 154,979.96/x
  3. Step 3: Cross multiply
    275,848.16x = 380,646.90 × 154,979.96
  4. Step 4: Simplify right side
    275,848.16x = 58,992,641,336.12
  5. Step 5: Solve for x
    x = 58,992,641,336.12/275,848.16
  6. Step 6: Final answer
    x = 213,859.11

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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.