Home / 371,904.84-513,228.63-221,001.84

Finding the Fourth Proportional to 371,904.84, 513,228.63 and 221,001.84

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Solution

The fourth proportional to 371,904.84, 513,228.63 and 221,001.84 is: 304,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,904.84 : 513,228.63 = 221,001.84 : x
  2. Step 2: Convert to fraction form
    371,904.84/513,228.63 = 221,001.84/x
  3. Step 3: Cross multiply
    371,904.84x = 513,228.63 × 221,001.84
  4. Step 4: Simplify right side
    371,904.84x = 113,424,471,570.68
  5. Step 5: Solve for x
    x = 113,424,471,570.68/371,904.84
  6. Step 6: Final answer
    x = 304,982.51

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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.