Home / 279,791.12-386,111.76-152,466.68

Finding the Fourth Proportional to 279,791.12, 386,111.76 and 152,466.68

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Solution

The fourth proportional to 279,791.12, 386,111.76 and 152,466.68 is: 210,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,791.12 : 386,111.76 = 152,466.68 : x
  2. Step 2: Convert to fraction form
    279,791.12/386,111.76 = 152,466.68/x
  3. Step 3: Cross multiply
    279,791.12x = 386,111.76 × 152,466.68
  4. Step 4: Simplify right side
    279,791.12x = 58,869,178,156.16
  5. Step 5: Solve for x
    x = 58,869,178,156.16/279,791.12
  6. Step 6: Final answer
    x = 210,404.03

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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.