Home / 374,835.87-517,340.09-221,958.92

Finding the Fourth Proportional to 374,835.87, 517,340.09 and 221,958.92

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Solution

The fourth proportional to 374,835.87, 517,340.09 and 221,958.92 is: 306,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,835.87 : 517,340.09 = 221,958.92 : x
  2. Step 2: Convert to fraction form
    374,835.87/517,340.09 = 221,958.92/x
  3. Step 3: Cross multiply
    374,835.87x = 517,340.09 × 221,958.92
  4. Step 4: Simplify right side
    374,835.87x = 114,828,249,497.35
  5. Step 5: Solve for x
    x = 114,828,249,497.35/374,835.87
  6. Step 6: Final answer
    x = 306,342.75

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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.