Home / 374,987.18-517,469.55-213,894.38

Finding the Fourth Proportional to 374,987.18, 517,469.55 and 213,894.38

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Solution

The fourth proportional to 374,987.18, 517,469.55 and 213,894.38 is: 295,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,987.18 : 517,469.55 = 213,894.38 : x
  2. Step 2: Convert to fraction form
    374,987.18/517,469.55 = 213,894.38/x
  3. Step 3: Cross multiply
    374,987.18x = 517,469.55 × 213,894.38
  4. Step 4: Simplify right side
    374,987.18x = 110,683,829,057.70
  5. Step 5: Solve for x
    x = 110,683,829,057.70/374,987.18
  6. Step 6: Final answer
    x = 295,166.97

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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.